The UI is very easy to use and the support is great. I have not found any issues with the product. I have been using it for almost 2 years now and I have not experienced any issues. It is a very good product and I recommend it to anyone who is looking for a good testing tool. It is a great product and I am very satisfied with the results I have achieved. I am using it for testing of native mobile applications. I am able to test the application in various environments. I am able to test the application in different screen sizes. I am also able to test the application in different OS versions.