diff --git a/example/example.cpp b/example/example.cpp
index 462613a1..1ef6bef4 100644
--- a/example/example.cpp
+++ b/example/example.cpp
@@ -19,28 +19,26 @@ int main(int argc, char* argv[])
 {
 
     if(argc || argv) {};
-    const unsigned int howmany = argc <= 1 ? 1500000 :atoi(argv[1]);
+    const unsigned int howmany = argc <= 1 ? 1000 :atoi(argv[1]);
 
     auto fsink = std::make_shared<sinks::rotating_file_sink>("log", "txt", 1024*1024*50 , 5, 0);
     auto null_sink = std::make_shared<sinks::null_sink>();
 
+
     logger cout_logger ("cout", {sinks::stdout_sink()});
-    cout_logger.info() << "Hello cout logger!";
 
     logger my_logger ("my_logger", {null_sink});
 
-    std::string s(100, '0');
-
     auto start = system_clock::now();
     for(unsigned int i = 0; i < howmany ; i++)
-        my_logger.info() << s;
+        my_logger.info("Hello logger");
 
 
     auto delta = system_clock::now() - start;
     auto delta_d = duration_cast<duration<double>> (delta).count();
-    cout_logger.info() << "Total " << format(howmany);
-    cout_logger.info() << "Delta " << format(delta_d);
-    cout_logger.info() << "Rate: " << format(howmany/delta_d) << "/sec";
+    cout_logger.info("Total ") << format(howmany);
+    cout_logger.info("Delta ") << format(delta_d);
+    cout_logger.info("Rate: ") << format(howmany/delta_d) << "/sec";
 
 
     return 0;
diff --git a/include/c11log/common_types.h b/include/c11log/common_types.h
index d4b1efea..bbe724df 100644
--- a/include/c11log/common_types.h
+++ b/include/c11log/common_types.h
@@ -16,11 +16,12 @@ typedef enum
     INFO,
     WARNING,
     ERROR,
+    CRITICAL,
     FATAL,
     NONE = 99
 } level_enum;
 
-static const char* level_names[] { "debug", "info", "warning", "error", "fatal" };
+static const char* level_names[] { "debug", "info", "warning", "error", "critical", "fatal" };
 inline const char* to_str(c11log::level::level_enum l)
 {
     return level_names[l];
diff --git a/include/c11log/details/line_logger.h b/include/c11log/details/line_logger.h
index fce5a933..70a2d6c9 100644
--- a/include/c11log/details/line_logger.h
+++ b/include/c11log/details/line_logger.h
@@ -8,7 +8,6 @@
 // line logger class. should be used by the logger as an rvalue only.
 // aggregates logging string until the end of the line and then calls the logger upon destruction
 
-
 namespace c11log
 {
 //class logger;
@@ -49,7 +48,6 @@ public:
         _oss(),
         _enabled(other._enabled) {}
 
-
     ~line_logger()
     {
         if (_enabled)
@@ -59,15 +57,13 @@ public:
             _callback_logger->_log_it(_log_msg);
         }
     }
-
-
+	
     template<typename T>
-    line_logger&& operator<<(const T& what)
+    line_logger& operator<<(const T& what)
     {
         if (_enabled)
             _oss << what;
-
-        return std::move(*this);
+        return *this;
     }
 
 private:
@@ -75,8 +71,6 @@ private:
     log_msg _log_msg;
     details::stack_oss _oss;
     bool _enabled;
-
-
 };
 } //Namespace details
 } // Namespace c11log
diff --git a/include/c11log/logger.h b/include/c11log/logger.h
index 97b124b0..166bdf47 100644
--- a/include/c11log/logger.h
+++ b/include/c11log/logger.h
@@ -53,12 +53,14 @@ public:
     const std::string& get_name() const;
     bool should_log(c11log::level::level_enum) const;
 
-    details::line_logger log(level::level_enum);
-    details::line_logger debug();
-    details::line_logger info();
-    details::line_logger warn();
-    details::line_logger error();
-    details::line_logger fatal();
+    details::line_logger log(c11log::level::level_enum);
+    template<typename T> details::line_logger debug(const T&);
+    template<typename T> details::line_logger info(const T&);
+    template<typename T> details::line_logger warn(const T&);
+    template<typename T> details::line_logger error(const T&);
+	template<typename T> details::line_logger critical(const T&);
+    template<typename T> details::line_logger fatal(const T&);
+
 
 private:
     friend details::line_logger;
@@ -103,34 +105,77 @@ inline c11log::details::line_logger c11log::logger::log(c11log::level::level_enu
     return details::line_logger(this, msg_level, msg_level >= _logger_level);
 }
 
-inline c11log::details::line_logger c11log::logger::debug()
+
+template<typename T>
+inline c11log::details::line_logger c11log::logger::debug(const T& what)
 {
-    return log(c11log::level::DEBUG);
+    bool really_log = should_log(level::DEBUG);
+    details::line_logger l(this, level::DEBUG, really_log);
+	if(really_log)
+		l << what;
+    return l;
 }
-inline c11log::details::line_logger c11log::logger::info()
+
+template<typename T>
+inline c11log::details::line_logger c11log::logger::info(const T& what)
 {
-    return log(c11log::level::INFO);
+    bool really_log = should_log(level::INFO);
+    details::line_logger l(this, level::INFO, really_log);
+	if(really_log)
+		l << what;
+    return l;
 }
-inline c11log::details::line_logger c11log::logger::warn()
+
+
+template<typename T>
+inline c11log::details::line_logger c11log::logger::warn(const T& what)
 {
-    return log(c11log::level::WARNING);
+    bool really_log = should_log(level::WARNING);
+    details::line_logger l(this, level::WARNING, really_log);
+	if(really_log)
+		l << what;
+    return l;
 }
-inline c11log::details::line_logger c11log::logger::error()
+
+
+template<typename T>
+inline c11log::details::line_logger c11log::logger::error(const T& what)
 {
-    return log(level::ERROR);
+    bool really_log = should_log(level::ERROR);
+    details::line_logger l(this, level::ERROR, really_log);
+	if(really_log)
+		l << what;
+    return l;
 }
-inline c11log::details::line_logger c11log::logger::fatal()
+
+
+template<typename T>
+inline c11log::details::line_logger c11log::logger::critical(const T& what)
 {
-    return log(c11log::level::FATAL);
+    bool really_log = should_log(level::CRITICAL);
+    details::line_logger l(this, level::CRITICAL, really_log);
+	if(really_log)
+		l << what;
+    return l;
 }
 
+template<typename T>
+inline c11log::details::line_logger c11log::logger::fatal(const T& what)
+{
+	bool really_log = should_log(level::FATAL);
+    details::line_logger l(this, level::FATAL, really_log);
+	if(really_log)
+		l << what;
+    return l;
+}
+
+
 
 inline const std::string& c11log::logger::get_name() const
 {
     return _logger_name;
 }
 
-
 inline void c11log::logger::set_level(c11log::level::level_enum level)
 {
     _logger_level.store(level);
diff --git a/include/c11log/sinks/async_sink.h b/include/c11log/sinks/async_sink.h
index fb92733b..6a408e34 100644
--- a/include/c11log/sinks/async_sink.h
+++ b/include/c11log/sinks/async_sink.h
@@ -74,6 +74,7 @@ inline void c11log::sinks::async_sink::_sink_it(const details::log_msg& msg)
     auto new_shared = std::shared_ptr<details::log_msg>(new_msg, [](details::log_msg* msg_to_delete)
     {
         delete []msg_to_delete->msg_buf.first;
+        delete msg_to_delete;
     });
     _q.push(new_shared);
 }