I've started using it several weeks ago and I believe it's great!

phone number requirements are a big no-go.

You don't recommend nostr:nprofile1qqs8t4ehcdrjgugzn3zgw6enp53gg2y2gfmekkg69m2d4gwxcpl04ac04xqkm ?

it's just another messessing app, nothing special

Signal had an ugly data breech around 2013... Never trying it again...