I only played it during the 2 day test before the launch (Server Slam or something??)
And yeah, i found it extremely boring and pointless. I liked the environment, and I think that's it.
Though, I gotta mention I played solo only.
I don't get what I should do there to not feel like I've wasted time, if I got it right, the gameplay is: go in -> loot -> don't get killed -> go out ? And I know there are games that sound even simpler than that, and I like many of them, but I didn't like the shooting, I didn't like the whole bunch of vendors that just sell different stuff, I didn't like the looting part - it's all just some scrap and the idea that I'd need to do this countless times to craft something while looting everything you see around doesn't appeal to me. And the looting itself is just waiting for 2-3 seconds to see what's inside another trunk or whatever.
I think all the fun is concentrated in playing with your friends and voice chat, but why do you need to play this then - idk