Since I have experience with these kind of games, first thing I did when I found a pit was save and jump into it. x)
That said, they're a bit heavy on the secrets-and-loot-and-xp and a bit light on the OH MY GOD THIS IS SUCH A HASSLE DEAR LORD WHAT THE FUUUUUUUUU- as I remember it from Eye of the Beholder.
Here, it's almost always a reward and in an isolated section of the next level. Don't get me wrong, I understand why they made it that way, as opposed to the frustration and "Nope."-ness of some other Dungeoncrawlers that used this system, but I think there just should've been a bit more tradeoff, more than just a little damage that takes 5 minutes to heal.