[emn13]

Also missing: an obvious way not to include an HDD/GFX card (I just tried the "pro" setting).

I think your categories are too large - e.g. you show various motherboards but really no way to choose which one you want (i.e. physical size, minimal ports, other characteristics), nor an easy way to select the chipset.

Similarly, the SSD grouping simply had "SSD"s. Again, features like encryption support and/or powerloss protection might be interesting to look at; and even more obviously, I'd really like to narrow down the selection by size.

I saw you preselected the 4770K, yet the 4790K is it's successor (and certainly should be an option).

All in all, I want a system to satisfy various needs. Some aspects I may not care too much about or know much about, so a default choice or bias is fine, but there's almost always some aspect I do care about. And if you really don't care, you should probably look into just buying some ready-made HP or whatever (no idea which brand is best) box, and at least you'll get good somebody to put the thing together for you (and be responsible when it doesn't work).

[Schwolop]

Almost every type of "show me a filtered subset of something" website could benefit from your first feature - basically an "I've rejected this item for reasons your filters can't support, and never wish to see it again" button or checkbox.

Unfortunately, almost all such websites are supported by vendors paying to have their wares promoted to users, and letting users _not_ see them isn't what the vendors want. (e.g. in real estate searches, there are plenty of houses that meet all my criteria but which are terrible for other reasons and I'd prefer to never see in my results ever again.)