My boss has one of those Satios. It's nice looking and the camera is fantastic, as PB says, but he has a few niggles with it too. The Push Email function doesn't. The screen can sometimes take a fraction longer than you expect to react to a touch, and when you go to touch it again it all suddenly jerks into life and your second touch will then progress you past the point you wanted to be... if you get my gist.
Other than a couple of lock-ups, variable battery performance (seemingly depending on which day of the week it is.. or not) and the nuances with the screen it seems really nice.