I've played this hack until the two female subordinates from Mirror B. Started it first as a Nuzlock which I quickly found unfun because all the Shadow encounters were pretty weak (mostly unevolved Pokemon). I then started a normal run which was better but still not that interesting because of the many weak moves, that have been buffed. For example moves like faint attack, astonish and acid are buffed to 90 or 80 Power moves which makes pretty much every fight in scenario where you either one-shot the enemy or get one-shot. also all multi-hit moves are 100% accurate which is fine but have 25 power, which makes some fights completely RNG.
However i like the changes of shadow encounters and move pools in general but I think it would be a lot more fun if the moves weren't buffed that hard. Like giving astonish 50 power is more than enought imo.