I used match.com in 2003/2004. I met my now husband in 2004. I will say this, I received thousands upon thousands of responses, but only went out with two people (one of which I ended up marrying). The first guy was nice and we had a pleasant time, but there wasn't any chemistry. It can be a bit disheartening and there are a lot of people on their only looking for a booty call. So, really know what you're looking for in someone and be very picky about who you go out with. I'll tell you my story:
On match, they do this thing where they send you people who they think are a good match. This one guy kept getting sent to me and I would read his profile and really like what he had to say, but thought he looked a little too 'outdoorsy' for me. Finally, one day, I thought what the heck and 'winked' at him (winking is a way to say you're interested without actually emailing the person). The day that I winked at him, he was leaving town for work. By the time he got to his hotel, he logged onto match with the intention of cancelling his account, but instead saw my wink. He had checked out my profile before and really liked what I had to say, but thought that I might be a bit of a party girl, so never contacted me. Since, I winked at him, he decided to email me. We emailed back and forth for the next two weeks. Then we decided to exchange phone numbers. Our first phone call lasted an hour. At that time, we decided it was time to meet - for drinks and appetizers. We ended up talking on our 'drink and appetizer' date for over 3 hours. It was only later that he realized he probably should have suggested dinner. The rest is history. We married in 2009 and now have a wonderful 3 year old little boy;)
p.s., we're both older than the typical in your twenties dating. We both have jobs where we have no desire to find a mate at and had no desire to go to bars. At the time we were 34 & 36 respectively.