Have flown it on two types, and recently back on it. I agree with all comments expessed so far, and in general I like it a lot. As others have noted, the "auto tune" feature of the ILS/LOC seems to have mind of its own, and often does not auto tune. Sometimes it announces in advance that it will "auto tune," often it tells you nothing, but does auto tune, and from time to time it tells you nothing - and does no tuning whatsoever. It's a VERY clever bit of kit as it seems to know when you are NOT going to be shooting a visual approach - it's on such occassions that it NEVER auto tunes!
As mentioned by another poster, we make a habit of setting up the ILS/LOC manually for every approach - just like in those days when steam and round dials ruled!
The rest of it is great though, once you get familiar.