I'll do this review in segments.
Gameplay: repetitive with very little depth beyond looking at an opponent and pressing the fire button.
Combat: targeting system is flawed to an extent that it will shift your camera view and weapons to a target that is both outside of your range and or behind cover when there is a mech right in front of you.
Metagame: Very bad diversity due to the developers releasing blatantly broken and unbalanced mech's and moduels that have little no counterplay despite player feedback.
monetization: extremely aggressive to the point where just opening up the game you will have to close several windows that pop up offering you either in game currency or mech's, most of which range between 20$ to 100$ with a rigged gacha system that offers the illusion of randomness when the odds are not random but skewed to give you the least valuable prize.
Developers: Very unresponsive to player input with an almost snarky attitude towards the player base.
Performance: The game constantly lags causing opponents to appear to teleport to different locations even on new end high performance phones, this coupled with some mech's abilities to jump, fly, and activate stealth makes it unplayable at times.
Overall it's not a good game both in terms of performance and skill based gameplay. If you want a game that is fun and challenging this is not the game for you.