I finished the DLC today! I really enjoyed it, so much so that I think if Shulva was in the main game, then it would probably have been my favourite area. Such an interesting area to explore. Also the bosses, holy crap. Elana really does show how Nashandra was the weakest fragment of Manus, considering how tough Elana was in comparison. The battle with Sinh was also pretty much Kalameet 2.0 and just as challenging and epic as the original was too. Adds some really interesting lore and impacts it has on the main game as well, and reading up about it and the implications it has is fascinating stuff.
Though I have to say, I did have some issues. The Dragon Knights had so much poise it was ridiculous. The ganker bosses in Cave of the Dead were impossible solo too. I really feel like it was designed for co-op and not solo play as I don't recall a Souls boss that requires you to take on 3 equally hard bosses at the same time. Perhaps things might have been different had I not played in NG+ version, but still...It also adds nothing to the lore, other than you're fighting 3 human graverobbers. No souls obtained afterwards. Nothing.
Still from what I've played it gets me really excited to see what the next two bits of DLC will be like as it's already one of the best pieces of DLC I've played. Also, again, fantastic work on the soundtrack.