You know, it's easy to trash on Roberto's. The food isn't particularly good, it's pretty bland actually, the quality of the product isn't exactly up there and the service is whatever. This place is perfectly average across the board.
But it's one of the first meals I had in Vegas and it's open 24/7. Much like Pho Kim Long, there's something reassuring about these 24/7 spots that you can rely on for a halfway decent meal that will fill you up for cheap.