Been here 3X - breakfast, late lunch, and lunch.
Finding a healthy and innovative menu with quality ingredients is hard to find in Las Vegas, and Skinnyfats does a great job. I've only ordered off of their healthy side, but everything that comes out of the kitchen looks great. I wish they had a couple more salads on the menu, because they understand the concept of high quality greens & salad dressings, and don't drown the salads with the dressing.
I was all set to give it 5 stars. However, this last visit, I made the mistake of showing up at lunch time. The inefficiency was hard to watch. I used to go to a similar size restaurant with indoor and outdoor seating in San Francisco which also had just one cash register going, and delivered the food to the tables via number. Night and day difference in terms of getting customers through the process from arrival to departure in a timely manner. Skinnyfats has a salad called the slow boat to china - we were all making jokes that the line should be called the slow boat to skinnyfats. .
Will be back - just not at peak times.