We saw it last week using free tix. It was OK -- family friendly, mildly entertaining. The show opens with videos and clips of various people commenting on how wonderful the guy is, and the show ends with Burton imploring the audience to go out on the Strip and tell two people about how good the show is. I don't know...these bits seemed at turns self-congratulatory and desperate to me.
In the middle of the show, he brought out this other guy, Russ Merlin, to do a bit of comedy. He was by far the highlight of the show, IMO. As for Burton, If you enjoy watching a guy stuff a girl into a box and having her disappear, you'll love his act.