Pros
The first thing you will notice is the time off, they offer European levels of time off, and you'll never use it all (probably, most people had surplus, they started forcing people to use it). The starting pay is alright, good for Boise. Regular stock options, and stock offerings. The health center is really sweet! Culture there is more conservative overall, that can be a pro or a con depending on how you lean. Work life balance is ok, depends on the department a lot, but I didn't really have an issue with this. They allowed me to work from home during ice storms or when sick. They do encourage learning and growth within your existing role, taking college classes always gets approved. I didn't leave Micron because Micron, I left because I wanted to live someplace else, If you're an engineer and want to live in Boise, Micron is your best bet, and it's not a bad bet either. Some of the best engineers I've ever worked with were at Micron.
Cons
Well, it's conservative, for me that was a tad bit of a con, yes, it's a good ol' boys club, I can deal but come on, it's the 21st century. They promote and give raises very very slowly, so your pay gets less competitive over time unless you complain loud and outperform everyone else. They also don't support career changes, want to change tracks? Good luck, they like to keep you where you're at. Sometimes getting new ideas implemented requires going through a lot of office politics, especially if some senior person is pushing their idea and wants to get another pip on their collar. The politics can get nasty, and it doesn't seem to be getting any better. They also seem to hire senior leaders based on politics and not qualifications, one director I worked under claimed to be a big shot at a former company, I asked around at that company, no one even remembered his name let alone knew what he did. Again, more politics.