I visited Sugar Factory with a large group of coworkers. I wasn't quite sure what to expect because I could not find a menu online but I was pleasantly surprised overall.
The location is a combination restaurant/candy store/bar. Only in Vegas, really.
The service was very attentive but they seemed a bit unprepared for the vegetarians at our table. However, there was no delay in the food. All of the omnivores raved about their meat dishes.
For desert, they brought our group to a back room with a bar and a buffet of candy assortments which was truly the highlight of the evening.