I've been able to play for about 15 hours so far and there are some amazing standout moments, such as the expansion-pack features including Pai canyon and the top of meteor falls.
But there are some obviously bad balancing issues that make the game really annoying, including Watson, Norman, and the hilariously OP keckleon.
Keckleon with protean and 250 base defense and special defense is absurd. It's not fun to battle against, and the only option is basically toxic stall against it's diverse move pool, throwing meat shields until it dies.
Norman's recycle + 50hp healing sitrus berry and stat boosted Porygon is also stupid. Not a fun challenge.
You can barely keep up with the level curve if you battle everyone. Overall this hack relies on you having access to an emulator, which is really frustrating.
Overall it ends up being a frustrating experience, and the rebalancing mostly goes to the wrong people. I still can't use weak mons like hoppip or spoink on my team. Hoppip has no attacks, so even though the support move pool is fantastic, it's an absolute chore to train up and not fun to use after the initial value of charm and safeguard wear off. All I see is OP renditions of already competent mons.