Not sure of the sound quality on this unit, but if you're looking for something that is very factory looking check out this unit made by Rosen..
Rosen UN1010-H11 Navigation receiver at Crutchfield.com
Looks like a pretty good deal from Crutchfield since theyre throwing in a rear view camera, ipod cable, dash kit, harness and antenna adapter and the steering wheel controls are built into the unit...
While I'm loving my recently installed Pioneer X920BT, If I could redo things and discovered this unit earlier I would probably have gone with this as I also wanted a very clean and factory looking head unit.