I unpacked my UFX earlier today. Installed drivers, put cables in it, power-up, change audio device in Pro Tools 9, and GO!
Took me 15 minutes to switch from my old system, Digi002
with ADI-8 DS.
After testing it briefly, it seems to work like a charm, all ins/outs showing up in PT, new TotalMix FX is much more convenient to use than the original one.
Sound-wise, I feel a difference in sonic quality, compared to the ADI-8 DS. Not a different breed, it is subtle. My impression is that old stuff sounds more wide and slightly warmer. I´ll come back to this later. Will do some comparing next week, during an album mix.
Only downside so far, is that the cover for the upper one of the two small pots, simply fell off. It was glued in place, obviously not strong enough. The pot is still usable, annoying though...
So far, I´m a very happy camper.