[mseebach]

I really liked it. Easy to follow instructions and an active community where all questions I could come up with were already answered. Took me an afternoon after getting almost nowhere with Cognito in three days.

The thing I spend the most time on was "user_metadata" and "app_metadata", two JSON blobs on each user, RW and RO respectively. In order to read those at all from your application, you have to define a custom "rule" (arbitrary Javascript that wraps responses). The reason for this is something about standards and name-spacing, but I couldn't really follow the argument, and it's seems like this is something that very confusing to a lot of users.