Koi is a solid 3 star sushi place. Not near the best sushi that I have had, but also not close to the worst. There was nothing too memorable about Koi, besides the surprise I had when they said they only serve Asahi and Sapporo as the Japanese Beers. I would think that a place like this would have a few of the rare Japanese beers, but alas, they did not.
Would I return? Only if I was staying at Planet Hollywood, and traveling for business. The prices were a bit high for the size and quality that was served.