I like how easy it is to use and set up. It's also very customizable. The software is constantly being updated and improved. Sometimes there can be some lag time between when you make changes in one area and when they are reflected in another.
This can be frustrating if you're trying to see what part of the system you need to change. Also, sometimes it's hard to figure out which section of the screen you should click on to get to the next step. There are other options out there but this one…