This is the first dentist I've had that I actually enjoy.
I've been to Dr. J several times now and I can confirm that she is excellent in terms of both bedside manner and actual dental work. She is very conscientious of pain level and provides steady positive reinforcement (I've never been so praised for doing so little: "Now Bite." "Good job.") Also any time a person has drilled in your mouth at length and you still enjoy their services is a small miracle in my mind and Dr. J has achieved this feat. So the important part, the dentist, is covered here, but there's also some less tangible things that make this a great place:
1) Open late. Go to the dentist after work and save those sick days for hangovers and impromptu road trips.
2) The nicest office staff ever. Like ever. Spectacular customer service with no exception. They really convince me that that they were happy to see me. I still believe it.
3) The office is small but very well appointed. Of course they have TVs above the beds (seems to be standard in Vegas) but everything is very stylishly put together.
4) Lee's Discount Liquors is in the parking lot. While they may inform you to wait an hour to eat they have never told me to wait a specific amount of time before consuming gratuitous amounts of alcohol. (If you bite your tongue or a hole in your cheek that's on you drunkie.)
TLDR: Great Dentist, Great Service, Great Office.
7/2014 Update: I've been here five more times and still love it. Still Great!