I love Lulu's! It has become my fav online website to buy. Their costumer service is great, they are always responding their live chat, email or phone calls, so they never leave you hanging. The quality is really good and well some items may not be able to be returned because is Final Sale and they specify it on their website so I don't know why some people complain about it, you need to read before buying...
Returns are free and exchanges, everything is so easy with them. I'm comparing this to other websites I've bought from and Lulu's is the best SO FAR...!