It is very easy to use, has a nice interface and it's free. Nothing really. I have used this software for a while now, and i must say that everything is good. Great user experience, great reports, friendly support (if you need help, they are always there). I think that it is a great system. But sometimes when you are building a report, and you try to add some more details, the program seems to freeze. Otherwise, everything is fine. So far no problems at all. If you want a web reporting tool, with nice reports and easy to learn, this software can be your solution. We needed a system to create our own reports with many different parameters. Also we needed a way to share those reports with our colleagues. This software solved both problems perfectly.