ps. At max level "loot grind" is laughable, I completed my 3rd try at survival and managed to get 13 loot crates, boosting from 210 to 256 (item cap) basically straight away. Went to global tier 5 and had a blast against really tough enemies.
Survival can be done in groups or solo, and I really do recommend it, it's bloody challenging.
Can't speak to PvP, I avoid it like the plague, but apparently cheating has decreased significantly.