I came here for lunch one day. I was going to go with a sandwich but the pizza in the window looked too good to pass up. I actually went away from my usual cheese and went with one meat pizza slice and one pepper and onion slice. Both were delicious - not too greasy, thick crust pizza. Pizza was cooked in about 10 minutes.
Overall, it's a nice slice of pizza. I usually compare all pizza I eat to New York style. I still have not found the true New York slice in Las Vegas, and I'm not sure it exists, but Joe's is not too far off. The prices are not cheap but not expensive - you could easily eat a nice lunch for under $10 at this restaurant. I think there are still many more pizza places to try so I would not outright say this is a must stop for tourists, but it is solid if you happen to be in the area.