The catches are many, but inherently solvable!
1. You have to be online for invitees to initially join your community. We have a release planned this week that will relax/mitigate this.
2. Sometimes it will take 20 or 30 seconds to connect to a peer over Tor, and this is longer than most users expect.
3. Mobile is much harder than desktop and our mobile apps aren't in as polished a state as the desktop app. iOS background tasks and Android long-tail device support are hard!
4. iOS will almost definitely depend on a centralized push notification service for reliable notifications.
5. If you send a message and nobody is online, nobody will get it until you and someone else are contemporaneously online.
And there are more. But your point stands! Quiet can offer a superior onboarding experience in a lot of ways, and it can be snappy for day-to-day use. And thanks for taking the time to try Quiet and relaying this lovely impression to everyone here!