This is the same owner as Vintner Grill but is only open for special events. It's a nice space. A little small for 150 people, but still pretty good. Nice view of the strip.
It's located at the top of Neiman Marcus but a little hard to find. You need to access the restaurant from the parking garage and take an elevator up. The food is pretty good - better than any I've had in other events only venues. They put a lot of detail into the desserts. Unfortunately it took a while for us to get silverware to actually eat the desserts, but I think that was a minor hiccup associated with the fact that there were so many of us crammed in there.
Check it out if you have an event and want to hold it on the strip. It would be perfect for 100 people or less.