The best thing is its GUI which is very simple as well as intuitive as compared to other tools. It really doesn’t matter which platform you use on computers. Like other tools, it doesn’t face any compatibility issues. Also, it’s a freely available tool due to its open-source nature. JMeter is having a very unique feature in it that most of the other tools lack and i.e. it can be used easily for automated testing of the apps. The extensible nature makes it simply the best as compared with others. In addition to this, it permits concurrent sampling very easily. All the test plans can be prepared in XML format in JMeter.