>>6720876I've got 36 hours in, and I haven't had any connectivity issues personally.
My favorite part is the melee. Melee is a hoot, there is a fast-strong-counter mechanic with melee that is influenced by tier of weapon and the battles get stupid hectic.
I'm not sure what you mean by P2P, but you earn xp that determines your rank and thus the tier of upgrades you have access to, in addition to points to spend on those upgrades, and points to spend on weapons and wargear at the end of every match. The only stuff you actually have to shill money out are are basically cosmetic upgrades. i.e. you can spend RT points on a shiny gold power fist with a standard stat line or pay 16000 requisition for a faction colored one. (For reference I usually earn ~2000 a game and I'm not very good).
Customization includes pretty much the full 40k fare which is neat, each race has five or so classes and each class has a bunch of weapons, armor, trinkets, grenades, and wargear they can swap out.