I definitely feel like Chemistry.com is a waste. First, they kept bombarding me with matches who had NOTHING in common with me. Then, when I decided that I was not going to keep my membership past one month, I went to go cancel it, but they stated they had already re-billed me for the second month. It took quite a bit of wrangling that got the BBB involved to finally get my money back. I have not tried other services so I cannot compare, but Chemistry.com has definitely turned me off to the world of online matchmaking services.