Have used OkCupid since my marriage dissolved 5 years ago.
No, not every date has been true love, but I've had wonderfully loving experiences with very compatible, sincere women. I've been amused by some of the negative reviews on SiteJabber, which seem rather bitter about online dating and life in general.
Don't let the negativity get the best of you. The creators of OkC have been written up in the New York Times, the New Yorker, etc because this site's algorithms and methods really do work. It's fascinating and fun. You still need to MEET the person you're interested in to see if you have chemistry or not, and you need to be interesting, creative and worth dating YOURSELF or you'll be disappointed when your date is disappointed in you.
OkC gives us all free rein to express ourselves in the profile... be honest!... and the multiple-choice match questions determine compatibility ratings much more effectively than any self-descriptions we might choose for ourselves. The range of interests and quirks in the match questions really does give a "personality rating" and has been very accurate in my experience. A good match rating has always led to meeting a good person, whether or not we took it beyond a date or two. Chemistry is an in-person discovery no matter what site one uses.
Be bold, don't whine or complain, don't be a misogynist or man-hater, don't be bitter or have so much baggage you need a self-storage unit to hold it. Be nice, be creative, and BE HONEST. Have fun with it and BE fun yourself.
Dating isn't for sissies. Man (or woman) UP.