I said I thought it looked dumb. Well watch what you say kids, because 2CoolPC contacted me and offered to send me one to review, in an attempt to change my hastily-formed opinion of it. The unit itself is, as described previously, a big plastic scoop with a fan in one end. I couldn't find a CFM rating but it seems to be pushing a pretty decent amount of air around. The basic principle of the unit is that it draws cooler air from low-front in the case and ejects it sideways onto the motherboard, cards and CPU's.
Installation is a snap - no more than a cursory glance at the included instruction sheet required.
The manufacturers recommend sliding the unit up against the back of the case, presumably for best alignment with the motherboard. This should be the same for any sized tower case as the motherboard is usually the same distance from the bottom. If you've got very wide cards in the lower slots of your motherboard it might be a squeeze to fit it into the case. I have an old ISA SB16 in this machine and the 2CoolPC was resting against it when the case was on. Performance I first tested it in a fairly typical gaming machine.