Choosing air conditioning units - opinions about GREE and their integration present in core

Hi everyone!
I’m about to buy few AC units, and I want them to integrate nicely with HA.
Can any GREE users share their experiences?

Does the integration work well, were intermittent accessibility issues I seen on GitHub last year fixed nowadays?
Do you experience any problems when cutting off the chinese cloud on firewall (I want to integrate them locally, not going to expose my network to chinese botnets :wink: