Pros
It's still Fortune 1. Also, the work can be highly visible. And if you have the patience to deal with condescending behavior and a top-down culture, you might be able to introduce new technology, or at least be able to use it yourself.
Kontras
The company micro-manages and uses tools that only they have heard of, which makes remaining marketable challenging. Additionally, the micro-managing removes any desire to grow, which is what all the studies show, but Walmart is too big and too profitable to care. I've had a boss look over my shoulder since day one, micro-manage my work my first week to the point where he was correcting my grammar (which is what I have pretty much studied my entire life, and "corrected" it to something that was so wrong it made me cringe). He's also infantilized me through both actions and words, and when I dare think, he says the same thing, but a different way because after all, that is how we manage in 2018 like it's the 1960s. In stereotypical/clichéd fashion, there are too many 20-something males running around with stunted maturity and inflated egos. Misogyny and narcissism come to mind.