i like that you can actually outaim people in pyro duels now without having to sell your soul to the devil and spend 1000 hours learning where the fuck flame particles actually spawned. Now it's see person, click person, burn person. new weapons have potential, they're interesting mechanics, don't think they're implemented perfectly yet. Not a fan of the jetpack though, it's basically just turning pyro into a worse winston from ow, and that really doesn't add anything to this game.
The hud changes seem like they're at an intermediate stage; they might actually be leading to something good eventually but now everything's still worse than pre mym. contracts and cosmetics are irrelevant, i actually kinda like the reasoning behind maps they added though because they're all filled with close range areas, they definitely focused on making a pyro focused update. Unfortunately it makes them useless for proper play.
weapon rebalances were mostly things we've been asking for for years and they were done in pretty decent ways with a few potential exceptions. I think the gru changes are really good, glitches aside, because they force you to sacrifice total health pool for speed. If you wanna get to mid at the same time as everyone else, you're going to have about 150 health including overheal. Seems potentially balanced.
only thing I wanted was decent matchmaking though so r i p, gonna enjoy waiting another year and a half for that...