Not worth it compared to the free (and paid) other sites that are out there. With the other ones, you can search and choose at your own pace-- whether you want to spend a few minutes a week, or several hours a day. You yourself can decide whether someone seems worthwhile.

CHemistry.com sent me reasonable matches perhaps the first two to three weeks; after that, they've been less and less appropriate, further away, and finally, have dwindled to no new matches. They also make you decide about they matches they send you (you have to check Interested, not, or decide later-- and you can only have 5 decide-laters). If you check interested, they send that person a note that you're interested (and you might not be REALLY interested-- may just be mildly, and not want to have them disappear forever). Once you say not interested, there's no going back-- they're gone. No revisiting, thinking about them, sitting on it. You don't get new matches unless you classify the ones they send you one way or another. And features like "noticed you"? ---that just means that you were sent to someone as a match, and they looked at your profile, but didn't mark that they were "interested." So why would you contact someone in the "noticed you" pile?

Oh, and why do they make you take that excruciating test and classify you as a negotiator, director, builder etc.? they send you all of the types, so it doesn't seem that the test matters or means anything at all.

Big disappointment despite their glossy and appealing ads. Go to the other sites where YOU are in charge. I had much, much more luck and enjoyed it much more.