Love TJ's - It may not be as fantastic as some people are used to, if they are coming from states with tons of fresh products at their fingertips. In Las Vegas ( a desert remember) I don't think there is much better. It saves me a ton shopping here compared to Whole Foods.
The employees are always friendly and super helpful. They stock a large variety of products for the size of the store, and have even ordered items based on requests. If you buy a lot of dried fruits/nuts they always have an amazing selection.
There is always coffee to try, and yummy samples as well.
I would definitely recommend trying it out if you have never been!