From the top-rated review on Steam (and it's positive)

This game is definitely pay to win. The microtransactions aren't just cosmetics. The items in the cash shop are a necessity for all players in endgame. There are ways to get them outside of paying real life money. You can get them gifted by other players for ingame currency or you can buy them with another currency you get from doing daily quests, but both of those options require a lot of in game effort (either grinding and selling stuff for money or creating a bunch of accounts and doing the dailies on all of them, respectively).

Sounds like a winner.