Should I buy?

Thinking about getting this game, Bloodborne and Dark Souls 3 are amongst my favorite games of all time. Aside from that I love RPG's and anything that has a lot of RNG in it. How much do you think I'd enjoy this game? Also how much of a loot variation is there? Is the loot system more like Dark Souls or more like Diablo--or betwixt the two? I'm quite interested