Purchased a 880 about two weeks ago to replace my aging pronto tsu2000. I love this thing. It's sooo much easier to program then my pronto. I haven't found one thing that I can't do with the 880 yet. My only concern with it is the web interface. I worry that 'x' years down the road it may be a problem, can't see logitech going out of business, but other things can happen.

Anyway since I've purchased mine I've seen some really good deals on the 880 (of course), if you're on the fence, hope this helps.

Dave