Been playing a bit of this for some months, its basically a gacha game where you roll for a mobile suit and then go have fights with everyone else. The gacha format is alright, gives you enough to roll from time to time, but if you try to play on the higher levels rooms it does become kinda pay 2 win because everyone is using the latest most powerful suits.
The robots feel pretty weighty here and most of the movement is pretty slow, I'd say that its generally a fun time and I like that there are both space and ground battles, but also for some reason I tend get some pretty serious lag playing it which prevents me from playing it more often.