I like it. It could be more ajax-y and not have as many page refreshes.

It could also provide more info on individual parts. I do a LOT of spec-reading when I buy hardware. Customer reviews usually factor in as well.

I would like to be able to pick which retailers I want it to use prices from. I only shop a few places, so some of them wouldn't really be the best price for me.

I didn't have any confidence that it matches my CPU and RAM and Motherboard properly because of the warning on the page. I thought that was the main draw, but having to match those things manually defeats the purpose for me.