I'm hearing so much good stuff about it! If you had to compare it to past games, what does it play like? Diablo? World of Warcraft?
I guess you can think of it as a sort of first person Diablo, it has bosses, and respawn when you die, and a central hub, but with the attacking skill needed much more in depth and much more difficult, also you die alot but it's no big deal :-)
You might want to check out a let's play on youtube of DS3 or one of the previous titles to see if it's something you are interested in.
This one is pretty good if you want to watch a good DS3 one: