I have only used one and while I’m sure the site is legitimate (it’s a huge one that’s been around a while and has tens of millions of users), every person I met on it was a total creep or scammer. Over about a year I chatted with probably 200 people and not one of them was legit! No more of those sites for me, total waste of time and a real wake up to how many fakes and scammers there are in the world today. Sad.