Recent reviews by BTVitek from HR

Under the consideration you are a new or returning player, this game would be nice for you as you reach very fast the point where there is nothing to do but useless grinding. Game`s focus on that grinding without adequate rewarding makes warframe less fun for players who reached the "endgame", which just isnt there. So concluded, its a looter shooter game without any objective end target for players, if you like endless grinding its for you.