I would account for it's success on Broadway in that it is a fun show. As I said, "BUT Jerry knows how to construct a show -the catchy tunes come at just the right time - and by the time the entire cast walks down in boots (even the fiance!) you say, "ah f--k it" and get on your feet and dance."
I don't think KB is a bad show, it could have been great. I was on my feet clapping/dancing each time I saw it. That said, there are many successful shows on Broadway that have many things that needed to be fixed that were not fixed. Chiquita tell me what's wrong!
I knew it would be a success, and happy it is a success, not when then Times review came out, but when I read reviews on TV news websites and other local newspapers and saw the "comments" at the bottom with many average theatre goers, praising how much fun they had.
Ultimately, tourists do not care about the sloppy book, the mis-used characters, or anything else. They are just humming the Sex in the Heel! And that is great.
But given the choice between KB and Matilda I would choose Matilda.
"Observe how bravely I conceal this dreadful dreadful shame I feel."