I’ve had some good experiences with OK Cupid, but that’s probably because I’m a guy. My not-guy friends, as with all the other sites with a free tier, get constant filth and requests for skype sex. PoF seemed a bit shit; I tried Match around 2010 and it was a desert.
If you want to write a good profile, avoid:
“I like going out, and I like staying in too”
“I love to travel”
“I like all kinds of music really”
“I love my family and friends”
Basically all true of nearly everyone, and everyone says these things (usually in the same ways), so they tell people almost nothing about you. People are way too verbose, even though they probably know most people decide on attraction with the pictures. If people respond because of profile text it’ll be because of a genuine shared interest or because you’re funny. The best profile I’ve seen had the answer “Cans and mither” for “Typical friday night”. The worst began “I’ve been single since 2007” and ran on for another few million words.