While I am not necessarily a stranger to the world of adult toys, I haven't bought many of them myself. Love2Play is friendly and easy to navigate and they have an active blog that gives good general advice as well as specific advice on products.

I sent an e-mail to the staff to compare between a We-Vibe 4 and a LELO Tiani 2, and got some great feedback from the sales representative which helped me make my decision. I ordered that day and the package arrived the following day by express post.
Friendly staff, Quick response, Free postage