JMeter is well suited for Java applications where the user can script the scenario once and make changes to accommodate for as many numbers of users for load test execution. The image and selection of any files or exporting files scenario is handled well.
It is less appropriate to test Ajax applications where it is required to script click per use.
Burp Suite is a good general tool to test websites as long as your website is not too large or you have the time for it to complete. We have some websites that only about five to ten minutes for Burp Suite to complete an attack and a spider only takes about two minutes. Other websites have taken a few hours to complete. I have seen a tester actually run Burp Suite against one of our websites and it took all day to complete.
Easy of use - in generate load like HTTP requests, and processing/analyzing the responses. No coding is necessary at the basic level, just need to understand load testing and the infrastructure being tested.
Automatic management of things like cookies to help with session state support - so you don't specifically have to worry about it or handle it
Lots of testing/configuration options to suit your needs in making the right load generation (sampling requests), and analyzing the results, including any pre and post processing of the results first. Things like the Beanshell/BSF pre/post processors, response assertion, regular expression extractor, XPath extractor, CSV data set config
There is a JMeter cloud service called BlazeMeter that I think would be useful for those that need to scale up high load without provisioning their own systems. I've not personally tried it though, but I recently attended a meetup presentation that highlighted nice useful features that BlazeMeter provides. One should evaluate the service if they are considering JMeter and need to expand beyond existing hardware resources.
Jmeter requires many tweaks with respect to its configuration file and thread properties. users need to edit theses files themselves. There could be some interface where we can edit this fields.
Jmeter cannot handle more threads and hangs up when we increase the number of threads. This causes lot of inconvenience. In these situations, user can be notified that such change would be lead to slow performance so that user can do as required. The same appears when we try to view huge files on graph listener.
Jmeter should optimize the read and write access to output csv since it acts as overhead to the I/O performance. This affects our test results for the application which we are testing.
The interface is a big problem: No matter how many features a software provides you, if the features are not well presented, you will miss most of them when they are actually required. The presentation of the software should be improvised and made more presentable.
Tutorial videos for beginners: This software lacks a lot in tutorials. A beginner almost wastes most of the time in finding and understanding the features and the implementation of the same. The software vendor should work on providing more in-depth videos so that people can learn and understand the concepts.
Price, Wiki and user sharing. Having access to the information provided by the developers and other open source providers is key for me. The ability to share information and get answers directly is very important to success in software testing. And the price of this product currently is amazing. Too many companies charge way too much money for products that are far behind in their value and pertinence
I can jump right into a new test plan and start building from scratch. The natural progression from test plan to thread group and then designing the basic format of the process is very streamlined and smooth. With only slight modifications I can build out a very complex model from a very basic beginning.
Easy to use once you learn it; however, the user interface is not very intuitive at first view. Port Swigger does provide a lot of video resources for self-paced learning which helps. Most of the end users for PortSwigger Burp Suite will be technical and should be able to learn the product with the free resources.
I have been using JMeter for the last year. By using this tool, you can make sure the system will work under varied loads. It helps us to simulate real time scenarios by creating required virtual users and make sure the application will work under load. Perform load, stress, and stability testing using JMeter.
BurpSuite does not have an amazing customer support. All the major help that you will find is from public forums and Google. Although you will find all the required information on Google, still at time professional support helps you solve the problem in much less time and make your operations go smoothly.
I have used LoadRunner and Silkperformer, and so far Jmeter turns out be the easiest to use of all these. While each of them have their own ROI, Jmeter can be picked by anyone in hours and start testing within a day. While with other tools, we need to get license, install them (takes a while) and setup tests and firewalls, etc.
Each tool is specific and are good for what they do. While Burp Suite can perform some level of the same functions, somehow security consultants prefer these tools as additional to the Burp Suite. Maybe due to open source and easy setup when compared to Burp Suite. But Burp Suite allows for one tool for many templates for each project.