It's pretty hit or miss just like any store.
I buy a large amount of my groceries there.
Some name brands because it's better
Some of their private label stuff (because it tastes better or the same as name brand
Some stuff I can go either way
Produce is probably 50/50 which is on par with some of my local stores and only a little worse than my Super Target.
My local Sprouts and Whole Foods are the best produce around.
Meat is again about 50/50 (though I buy most of my meat in Bulk from Sam's which is also owned by
walmart and I vary rarely have problems with it).
Target is slightly better meat wise but I have gotten some real tough meat there as well, but a local meat market is top notch and I go by there and splurge sometimes.
However Deli meat I prefer Target or Sprouts/Whole Foods. There is only one brand of Walmart Deli Meat that I like and it's not always available and I won't eat the others. So I almost exclusively get that at Target their archer farms all natural is pretty good in the ham off the bone and their turkey breast.
However Walmart Brand has the best tasting milk (we drink fatfree), and we like their American cheese slices better than local or Kraft as well.