I'd give this 3 stars for what I paid ($27) but at the $45+ list price (going up to $70 for the best seats), definitely only merits two stars.
Host, opener and middler were weak. Headliner was a well-established comic but his energy was a little low -- maybe because the crowd was just out of it given what he was following. Show was a parsimonious 65 minutes.
Excluding Rich Little, this room has got to be grossing at least $100k a week with 12 shows a week (and yes comps count as tickets -- casino is supposed to paying for them). They can afford more and better.