This restaurant is pretty decent when you have a coupon, or if you go for their late night specials, but other than that I wouldn't recommend spending your money here.
We stopped in during our latest visit to Vegas because we got a 2 for 1 coupon when we signed up for a Four Queens players club card. The breakfast food was average quality but worth the discount.
The service, however, was painfully slow. They did come to our table immediately after we sat down, but naturally we weren't ready to order right then and there. We probably should have decided quickly and ordered then because we proceeded to wait 15-20 minutes for the waiter to come back. It wasn't just our table either, we noticed a few other customers looking around and asking each other where the servers were.
Overall, I will probably return here since they do have good late night specials, but I will likely never come in here during normal hours and pay full price.