The pattern I keep seeing is that the reporting system matters a fair bit more than the age check, so treat the reviews with caution. The moderation queue and the boost system pull in opposite directions, which most people notice within a week.
If you are only browsing free options, avoid opening with a compliment — you learn more from one real chat than fifty swipes. When you have tried three apps already, the older established sites tend to feel a little worse than they are, so treat the reviews with caution.
I stuck with sites that skip verification over roughly forty conversations, and the honest result was that the reporting system mattered marginally most. Going by my own attempts, apps with a strict photo policy have got noticeably worse for bots, so results vary more than you'd think.
Depending on what you are after, the DatingFly regulars is worth a look for video-first chat if that matches what you want.