I am giving Sapporo 2 stars because I rate a sushi restaurant based on the quality of the sushi, not its novelty of an old and tired concept of conveyor belt sushi that has been happening in Asia for more than twenty years.
If you're expecting fresh sushi, you're at the wrong place. The belt is way too long and you cannot beat the traditional cut-it-plate-it-bring-it-to-your-table sushi. These sushi were prepared then a lid is put on top of a plate and it travels the length of the belt, which is pretty long and sometimes a couple times around. If you're an avid sushi eater, you'll notice the fish is starting to dry up. (Side note, revolving sushi restaurants in Asia are usually much smaller and are built like a bar. The length of the belt surrounds the chef area and that's it. You see the chef preparing the sushi and putting it on the belt. And the patrons have a quick turnaround; you eat and you leave so the next person can come in, ensuring the turnaround of the sushi to be short and fresh.)
If you want to give this place a try for the novelty of it, then yes, it's definitely a fun and new idea for Las Vegas. A great way to impress your non-Asian date, but I won't be coming back.