The UI is very easy to use, you can quickly setup new instances or servers with different configurations without any problems at all! No other product comes close in terms of ease-of-use and performance monitoring capabilities - we've been using it since version 6 and haven't had any major issues yet (the only thing I noticed was that there used be an issue where certain errors would get logged twice). So far so good but as always when working with such products there are bound to be some bugs here and then. We're solving our problem by being able to monitor everything from one central place which makes things much easier than having multiple people looking at lots of logs across many systems. The way in which we can monitor our applications with this tool is very effective. It's easy to use, even if you are not an expert of programming languages. There isn't anything that I dislike about it. We have realized how important performance monitoring is when running critical applications such as banking systems or health-care ones. This has helped us improve the efficiency of these types of applications.