For starters I will say our service was great. Our server was very attentive ( even though she had too many tables to juggle).
The food and restaurant in the other hand was not a good experience. The food was decent but very small portions. A burger fries and drink plus desert still left me hungry. Not to mention way over priced ! $5 for a soda. The burger was decent but nothin to rave about. There are too many burger places in Vegas that are much better and most cheaper. I wouldn't waste your time with umami burger.
I will say the ice cream sandwich was delicious though ! Even for $7