Good. Signal is probably one of the best options with good usability. Even if some day it gets sold or otherwise turns bad, it'll still have weakened Facebook's dominance. I wish something that wasn't tied to phone numbers became popular instead, but Signal ought to be a great option as well.
Anyway, before I used to have one contact in Signal, now it's seven. I don't have a lot of contacts, so that's actually a good number already.