My family visited Roberto's on July 3rd after reading reviews here on Tripadvisor and we were treated to a fabulous meal and great service. It was quite busy when we arrived but we were seated quickly, had our order taken promptly, and had food brought out in a timely fashion. I had the carne asada burrito and it was excellent. My wife and kids had various combos and we all agreed that it was a fantastic meal. And this is quite an accomplishment with my kids being as finicky and aprehensive as they are with trying new places. But Roberto's hit a home run and we will surely return the next time we are in Mammoth. I only wish this place was in my home town!