I like that this is very user friendly, it's also simple to use which leads me into my next point in terms of ease-of -use! It took us about an hour or so just getting started with using our first estimate but we're now fully up speed after two weeks (which has been great). We'll be continuing to add features as time goes by to make sure everything works flawlessly once they are live online though there really isn't anything i dislike at all thus far other than maybe having more options when adding materials/labor would help? The program was designed from scratch specifically around what I've heard most people need out of such programs.