Red flags appear en masse when you take a look at Plenty Of Fish's page on the Better Business Bureau (BBB) website.
The BBB has awarded the site a big fat 'F' for flat-out bad customer service.
For these folks, Plenty Of Fish and their "personality dimensions" might be a bit of a turn-off.
This is one possible reason why their membership is so huge.
Most of the online dating sites have personality tests (Zoosk doesn't), and Plenty Of Fish is no exception.
As part of their Relationship Chemistry Predictor, they give their members 73 questions to answer, all of them designed to measure members' "five personality dimensions" and match them with other members who have taken the test.
On the other hand, if you take the time to learn the plusses and minuses of Plenty Of Fish, you can make an informed decision to sign up with them or not.
To get you started, here are ten things you should know about Plenty Of Fish before you sign up.
Of 187 complaints filed with the BBB against Plenty Of Fish, only two complaints have been resolved with the company.
For the rest of the complaints, Plenty Of Fish didn't even bother to respond to the BBB's requests.
And, as if that number weren't high enough, Plenty Of Fish claims to be adding 50,000 new singles per day to its ranks. It means that, in terms of sheer quantity, Plenty Of Fish is going to give you access to more potential dates.