Decided to give it a go and made a character. As I'm getting through rook, I open the shop to see A LOT of p2w stuff in there.
Some of the items in the shop had a lvl requirement, but lvl gating some of the items there does little when you can still buy - infinite life or time ring, regen boots, phys% resistance item...
And I saw stuff in the shop that lets you skip content too - like an item that takes you to the Shadow Nexus part of INQ.
I mean, I can't comment on the custom content because this level of p2w is definitely not for me.
Edit: Adding a screenshot of some of the items in the shop that don't have a lvl requirement so you can get a better idea of what type of P2W exists and yes I understand these can be obtained for free as well by playing the game.