I had a lot of trouble with some of the fights and died a lot at first. But after I figured out, that you have to use your environment and even can throw oil barrels, it did got a lot easier. I didn't tackle the spider lady yet, because I'm not that fond of spiders and leave that for last, but I managed to kill the minotaurs first try, the duergar group, I found really hard and that Mykonid guy, that you have to kill, if you don't want to kill the Mykonid colony and the beholder .
I even feel confident enough to have a go at the bulette while in the Underdark.

"We are all stories in the end. Just make it a good one."

Doctor Who