I like how easy it was to use, with quick access of orders from anywhere in our office or home! We have been using this system since we started 4 years ago but haven't had any issues yet (but maybe because i'm new). It's great having all your information at one place so you can see everything about an account quickly without needing several different programs open etc..
The only thing would be if they could make it easier/more intuitive when adding multiple accounts into their program…