I've played it before it was on STEAM, about 4 months ago, got the max level pretty fast (it was 4 days, im not sure maybe 5) and basically for End Game u had like 3 maps to farm over and over. I don't know how it looks now after the patches. Maybe theres more content, but yea the combat is pretty sick and fighting bosses is such a hard thing. U need to have big mechanical skills to beat them.

edit: oh I forgot, don't add your skills points and don't feed your mag randomly. thats the biggest advice, probably you're not gonna be able to reset skill-tree and mag if u fuck it without spending $$$, check google for builds and follow something