I shall summarize what I do know of Acai bowls in point form, and speaking from my own experience!
1) Heat-related issues.
Acai itself is usually purchased in the form of a frozen purée that can immediately be used by itself or for other recipes. Meaning, it will melt really easily if you live in a hot climate (as easy as ice-cream!).
As such, it is paramount that you will have to work fast in assembling these bowls or re-freeze them.