Here are some of the main points I'd like to elaborate on. Open source allows me to tweak it independently and receive assistance from several people who enjoy contributing to this program.

This is incredibly easy to use and precisely fulfills my needs. Review collected by and hosted on G2.com.

The primary problem I encounter—and I assume everyone else faces it as well—would be that some of the features are occasionally somewhat buggy. If you can't fix them independently, you must rely on the contributors, which takes time. This software's user interface (UI) is a little dated as well. Review collected by and hosted on G2.com.