I always like to take something positive away from a show that is in previews understanding the amount of time, work and money that goes into it. For this show, I would say Raul does a great job with pretty mediocre material. However, for a show that has had as much production and workshop time, it just doesn't seem to work for me. I don't like to compare shows with each other because each show is unique to itself and God knows, we all have such different tastes. I have seen two other shows in previews and felt they were much better all the way around. All these shows have had standing O's, so I don't believe that's an indicator of the show's quality but certainly an indicator of the audience's enjoyment of it.
The bottom line is if they can sell tix, the quality is not the primary goal. It's no different than any other form of entertainment. Because we are theater fans, we like to hold that standard higher than most, but at the end of the day, its about $$. Unfortunate but true. So, the long answer to the OP question is that it's on Broadway to recoup some $$ that has been invested and investors want return....now, ready or not...
The only review of a show that matters is your own.