It's your typical grocery store. Right now in Gilbert where I live, you have two choices: Walmart or Frys. I prefer Frys as there are less people that shop here that look like they belong on www.peopleofealmart.com.
Depending on the cashier you'll get checked out super fast or super slow. All of the cashiers I've gone through have all been super friendly and haven't forgotten if I needed stamps or ice!