No - it's not tight and grotty, although the first section is one of the finest examples of chemically-induced rapid weathering to be found in the Dales. It's a fairly straightforward trip (although I must admit, it was rigged when I descended), and the last pitch is quite impressive.
There's one place it is possible to go wrong. There's a fairly narrow ladder descent at one point, with a passage going off in both directions at the bottom. People tend to enter the passage they happen to be facing when they get to the bottom! Facing the ladder, the right way on is to the right.