Well, my Alfa garage always treats me well... as they should, unless they get rid of a regular customer :P
seriously.. the only things that have gone wrong on my 156 are the things that go wrong on ANY 12year old car. so it's not unreliable at the least. The trim squeaks a bit, and it doesn't like winter a whole lot, but so far it hasn't done me wrong.. and i only paid 2k (with all the services included) for it.