my fiance and I just moved here from Orange County and not to sound like a snob but we are keen on top notch sushi. I have been to a few places in Vegas and am not big on the sushi I have experienced. Most places are all you can eat and give lots of rice and charge extra if you don't finish every grain!
Sushi Imagine has fresh cuts of fish, they do not over do the rice, great service, and reasonably priced. Two people two large beers and free saki total was 75 bucks before tip! That is reasonable in my book.
I would def recommend the salmon, the mermaid appetizer, and do not forget to check the board for specialty rolls. I am a picky sushi eater and have already been back here several times since my first visit!