Here's an interesting fact: Grand Lux Cafe is owned by The Cheesecake Factory! This makes sense as the menu is very expansive and they have a large dessert case in the quick serve station up front.
The food quality here is very good, I had chicken lettuce wraps and a side salad, both which were very good! Prices are a little more expensive than Cheesecake Factory, which is understandable considering its resort location.
I can't say I'd go out of my way to come here (hence no 5 star) but it is a very plausible option on the north end of the strip. Careful though, a lot of times there is a wait here.