Pros
Micron has been growing for a number of years, and it endured some growing pains. After it acquired some smaller memory companies (and one sizable one), the product portfolio became so big that probe and test engineering was severely strained by the workload. While that's still true, the teams are adapting to the challenge with a stronger focus on cross-team collaboration and using newer and better tools to become more efficient. There is a lot of opportunity to impact the success of the new game-changing products that are in the works, and the work extends far beyond simply writing code to test chips: there's a lot of understanding the physics and materials of the chips, the ways they fail, and the hardware they're tested on. It is easy to keep busy in interesting ways.
Cons
Change is hard, and some engineers are set in their ways with how they get things done, which does slow progress. There are also a few very strong personalities that unfortunately are allowed to dominate the environment, with some becoming overly negative or even hostile towards the work other engineers have accomplished.