Catacomb creates very differing opinions mainly due to the random bagatelle and confusing rules. I love it for the complexity and shot making needed to get the right drop at the right time. Great spinner that often sweeps the top target bank.
Random locks are a classic Stern specialty, see Nine Ball, that is another problem for some.
The one drawback for me, and it's the same with other Sterns, is that multiball does nothing but add extra balls. No score multiplier or anything extra for achieving multiball.