This is like Walmart (complete with toys, shampoo, electronics, and liquor, although I didn't see any guns) plus a sex shop... with a maid cafe thrown in for fun. We came here looking for tiny screwdrivers for my friend's camera, but only one or two sets would fit a screw that tiny. We also had fun looking at all the well-made costumes (most are maid costumes that cost around 7000 yen).
Unfortunately, even with all the stuff they sell here, I couldn't find the particular face lotion I needed. Oh well.
The famous At Home Maid Cafe is located in the Akihabara branch, but we missed last order by a few minutes.