I ate here two times when I was in Las Vegas once at dinner time and the other at lunch time. Let me tell you the selection were exactly the same at both times. So I definitely recommend eating lunch here because the price is three or four dollars cheaper.
For the price, you definitely get good quality food and a wide selection of stuff. When I came there, they had roast beef, BBQ ribs, a large salad / fruit bar, and desert area. Garden Buffet also has a Mexican area (tacos / nachos) and a Italian area (pasta dishes).
The service was friendly but slow to pick up dishes and refill drinks. Overall, this place was pretty decent and stop during lunch if you come by.
The Price vs. Quality: 4 Stars
Service: 3.5 Stars
Selection: 4 Stars