I've tried it the last couple days.... got a key as well.
I dunno man, while i love Marvel and everything surrounding it...i am not really getting hooked to this game.
The Quest directions are horrible, i couldnt complete some while i done everything asked for.
The Gameplay is very clunky and stiff.
The Crafting is unlogical..."drag item here" done that, nothing happen and item gone.
No Buy-back option on Vendor NPCs...sold a blue chest accidently.
I dunno really, its beta ofc...but its very unfinished considering they wanna release in june.