That's quite the desirable feature list! Some of those bugs are really old. I'll be interested to try it out and see whether this is stabler than the official adb version.
I know this is an Android project from Facebook, but are there plans to contribute this code to AOSP and get it merged upstream?
Oh, never mind.. having tried it out and looking briefly at the code, it seems it really only implements the adb shell command — it doesn't implement an adb server, and all other commands are delegated to the official adb binary. So there's very little if anything in common with the upstream code.