Poor user experience from the start
I downloaded and installed the app, but I can't sign in, as it is not finding my email-based account that I created in the prior step.
So, I tried to re-register, using the invite code, and it says the invite code is already used.
So I tried "forgot my password" using the same email address; it says my email address account does not exist.
So I tried to re-register from scratch, and it churns and churns without completing the registration.
Garbage!