Here is the deal:
No tax on purchases, but there is a service charge. Items are competitively priced, especially produce and meat. If you don't live in the area, it's quite a drive, and may not be worth the trip to save a few bucks.
Avoid this place at all costs around the 1st and 15th of each month (payday) - you will regret it if you choose to shop at these times.
It's a large store and you will find everything you could ever need, all in one spot. The staff is friendly, considering the crowds they deal with.
TIP YOUR BAGGER! I believe that they only work on tips, and they work hard.