This is the best Whole Foods in the entire Las Vegas Valley. I have been to them all.
I say it is the best because it is the biggest and has the biggest selection. There is a good selection of paleo products that you don't get at the other stores, and that I like since I am a paleo dork. Their prepared foods section is much larger than all the other stores. Customer service is okay, I go there regularly and only one person has annoyed me, which is really good considering how much I go there. Their lines are a bit of wait, but not horrible.
I recommend the meat dept. They have precooked meats that are ready to eat and they are really good. I recommend the brisket and the ribs.
I will warn you though if you go to the coffee bar, the Chai Tea Lattes at the coffee bar are not similar in taste as to what you would get at Starbucks. There is a lot more ginger in them. Not my cup of tea. (Pun intended, lol)
Parking is surprisingly not too bad since the mall it is in is very busy.