Reasonable price. Lots of RAM. Loads of hard-drive space. Easy hard-drive expansion. Digital TV tuner. Front-panel controls.
Quite a bit slower than other quad-core PCs at some tasks. Plastics are cheap feeling. Poor 3D performance. Crapware. Case requires screwdriver to open and service.
The Gateway LX6200-01 has a bunch of good features, and a few quirks. It is a passable option for the cash-strapped power user that absolutely has to have quad-core power, but there are better choices out there....