Okay, so I got my cosplay from them a couple days ago. I don't have pictures up yet but if you want I'll put some up here.
I think I first purchased my cosplay from them around early July. The cosplay is Noiz from DRAMAtical Murder if you wanted to know. It is this one:http://www.ebay.com/itm/COSYA-JAPAN-DRAMAtical-Murder-Noiz-Cosplay-Costume-Free-Custom-Made-/290947837400?pt=LH_DefaultDomain_0&hash=item43bdd7 add8
PROS: Ebay predicted that my package would arrive on August 23. It actually arrived on August 12 which was nice. The cosplay overall is alright. It looks just like the pictures on their listing. It also was a nice fit in most places (more about that below.)
CONS: I'm a little picky about the quality, one thing that bothered me was that the top was too thin. The black undershirt showed through which really bothers me. And the top and pants were a bit too long for my sister so we are going to fix them, but I think this was because my sister gave inaccurate height measurements.
CONCLUSION: Honesty, I can't say much about the quality because this was the first cosplay I bought online and I'm not sure how the other stores are like, but you do get what you see in the pictures and all the cosplays fit right as long as you give them correct measurements. It was okay...