I just newly heard about this site - skin.igxe.com, but I didn't find the reviews for this site. My friends said it is from IGXE.com, so I just leave the review here.
I bought Flip Knife | Doppler from this site, I was concern before the trade, but it was really fast, and the live chat helped me a lot, just a few minutes can familiar with whole site trade process. And they have Events page, I just save 15% of money on this page.
All of you can try this site, they have most of csgo skins available.