Quite good! Enjoyable period flick with quality performances from Lance Henriksen, as the inquisitor, and Rona De Ricci as the fair maiden. Frances Bay has a great side role as an imprisoned, unrepentant witch.
As you might expect, there's a lot of flogging, torture, and execution, some more innovative and squirm-inducing than others. The titular Pit and Pendulum scene is a bit hokey, but I suppose they couldn't easily cut it. I was initially on the fence about the subject matter, but I found it engaging throughout and thought it progressed and tied things up well.