I don't know if they are UP because of micro-intesivity but in random games they are definitely fun to play.
Especially shermans with triple reload bulletins and vet 3 reload modifiers. Badass fury-like tank crews man.
TBH, it isn't that micro intensive anymore. You get used to vehicle crews after muscle memory kicks in and you just click repair and shift for recrew to know when the tanks ready to go again.
Everything else about the faction is pretty simple after that, especially since ambulance is now a lockdown ability. It isn't as hard as it used to be and I'd say it's actually the easiest faction to get an hang of.