The game is not pay to win, the only things platinum buys you are cosmetics, rushing crafting tasks, extra item slots and where there is the biggest problem, instantly buying items. The thing everyone claims is that you can log in for the first time and have all the best items, when you can't, almost all items, excluding war frames, require you be at a specific "master level" to buy and use, or you get "XP locked" (I personally have a soma prime blueprint I would love to use but can't as I'm short) even with platinum the game will say no, and getting levels takes [i]forever[/i] as you have to gain levels with weapons and warframes/companions to gain mastery points (this dosnet sound bad but you need lots) So even if you have tons of money, you can't buy anything till you play a good amount of hours