Just another generic, unpolished, incomplete, lifeless "live service" game where its primary purpose is not to entertain but to harvest of much of your money as possible through poorly made micro transaction items.
If you are fan of Marvel and/or Avengers then you might want to stay clear, they've dragged the franchise through the mud that is making a game with minimal effort copying what others have done in the hopes to maximise profit.
Its in a similar vein to how companies will churn out Battle Royale games because they saw that PubG and Fortnite made a lot of money, or how there are thousands of Chinese clone mobile games that all play the same, because they are made to just harvest cash out of morons. In this case however, rather than "mobile" or "battle royale" the keyword is "live service".