I saw the show last night. I think it's about 85% ready for Broadway- some trimming is in order (fantasy scenes, Mundania song) and some book changes (Allison Janney love subplot for example) but overall the show is a big fat hit.
Yes, the show will inevitably get mixed reviews in New York but intended audiences (women and gay men) will love it. This is exactly the kind of entertainment that we need on Broadway right now- light, funny and glitzy. For once a ticket buyer can see what his money is going into- a superb cast (leads and supporting), a top-notch 15 piece band (conducted by Stephen Oremus), clever choreography and beautiful/complex set design which should be a shoo-in for a Tony.
To quote a line from another musical, This show definitely "give(s) them the old razzle-dazzle" in spades.
"It does what a musical is supposed to do; it takes you to another world. And it gives you a little tune to carry in your head. Something to take you away from the dreary horrors of the real world. A little something for when you're feeling blue. You know?"