Well, we'll start with a 5.. I had a GREAT time singing. I sang 14 songs! Even stopped pedestrian traffic with Glycerine by Bush. BUT... empty, open air bar, chilly weather, no one to sing with... NO customers at all.... loose 1 point. Karoke KJ (DJ?-he uses a computer..) wore an awful fake 70's rock star wig. No late 60's age man should wear such a thing. loose another point. Bar staff seemed not very interested in what they were supposed to be there for. A bit messy setup. Loose another point. I did not eat there so I won't add nor subtract for the food.
Location is excellent for the major casino/hotels on the strip. An easy walk from at least 7 casinos. Ross and Walgreens nearby for the little necessities. Location gains back one point.
I think if someone overhauled the place, they could bring in a lot more customers and even enjoy themselves in the process. (like outside heaters for the cold nights and a clean or even painted floor for atmosphere or even give it a bit more upscale look - might bring in more steady clientele.)