My biggest issue with C4s SR260 after coming from URC is the lack of custom buttons that can easily be named whatever you like, and you can basically add as many as you need.  The 260 has been a good and easy remote overall to use for normal functions, but if you want to do more, its a pain.  For instance, in one job, I have the custom buttons on the remotes in a couple rooms toggle lights with one button and on a second, toggles the shades up/down.  The problem, even I forget which button does which.  Sure, if the client uses it enough he will likely remember, but if it was designed more like the URC remote, it would be labeled and easy to pick up and use, even if you've never used it before.  With that said, I believe buttons are important and I do not like a touch screen remote.  Going back to URC, the TRC1080 was great as it allowed for custom labeled hard buttons.  I wish C4 has something similar.