I wanted a midsized sedan with a sunroof and manual transmission that was bigger than a Jetta or Civic. The Fusion is it. Plenty of room for my 6'5" frame. Power is adequate yet plenty of fun to drive. Smooth gear changes, but I wish 5th and 6th gear weren't so close together. Shifting to 6th at 55 mph or so only drops the RPM about 200. Stereo quality is decent. I miss the dual tailpipes on the 2010 model.
Sync is fantastic. Get a USB flash drive so you don't have to always have your iPod in the car. It works faster. Cloth seats are high quality and attractive. Blue dials look sharp.
More headroom, especially since the sunroof mounting frame cuts down on room substantially. Doors and windows seem a little on the cheap side.