Good to see this here!
I started using Maestral after finding myself increasingly annoyed by the unfortunately shitty experience of the official client on the Mac (and the lack of a native ARM release at the time). What I really like is that I haven’t ever really noticed it’s there, which is exactly what you want from a bit of software like this.
It’s a bit unfortunate that it doesn’t (or more accurately can’t) support smart sync, which is a very nice Dropbox feature. But it’s actually worth the sacrifice.