I've done my own digging on 321 sec chat safe and come up short. For sec chat rooms in particular, it is worth checking the signal-to-noise in search before you look at whatever the landing page promises. Nothing about sec chat rooms changes the fact that the deciding factor is how far the free tier gets you, going by the last year or so.
Same story on 321 sec: the signal-to-noise in search is a better predictor than star ratings from strangers, with the usual caveats. The sec chat rooms case is instructive — the platform locks messaging behind a subscription, so it pays to cancel the trial the day you start it.
With 321 chat rooms, the honest advice is to video call before travelling anywhere, as far as I can tell. How many first messages actually land outweighs the size of the ad budget — and that goes double for 321 sec chat safe. Anyone who has tested 321 chat rooms properly, please weigh in.