i want to say its crap coz its sony, but thats actually quite a good head unit.
definately better than a becker grand prix in looks, and also sound when comparing the internal amps.
if you are going to run the speakers from the headunit, the sony has 4x52w while the becker has 4x30w. (not rms figures i know but the difference in rms is the same)
as far as bluetooth is concered, the becker hasnt even got a2dp, so the bluetooth straming isnt even cd quality, unlike the sony.
considering the becker costs more, and you wont be using it in the way it works best (using all 5 preouts for a true surround setup), the better deal for you would be the sony.
plus the sony's screen is lovely to watch, the becker is a bit too oem looking.