Well you all know what I tend to recommend...
I have more, one of my old 7838, thw 7861, and my current 9835... just need to scan them...
I have NEVER had a problem with any of them (except the 7998 which was damaged by it's previous owner who I think tried to repair it himself)
Alpine's interface is easily one of the best on the market, although I do not like the glidetouch so far. Maybe with some tweaking it will improve.