Feels, as predicted, like a polished ArmA 2 game. Everything is pretty familiar. Melee combat is still unfortunately quite clunky, exactly like it was in ArmA 2, bit sad about them not revamping it, dunno if it is on their list of to-do though.
If you're strap for cash then no need to buy this game just yet, unless you simply just need to play a survival game, but no doubt when it is done it'll be the best one of all the survival games available.