Written in a conversational style by a technology-focused, operations leader.
Originally written in 1983, it's showing it's age as many lessons and learnings on people-management practices have been built into the modern management training curricula.
A few chapters on organisation design, centralisation, decentralisation, scaled teams, large organisations and the trade-offs. Nicely written. Still perfectly valid in today's world.
If I put aside the people-management aspects of the book, we see that Andy Grove has a good eye and understanding of optimisation and effectiveness. This is missing from many management/leadership books. His focus on excellence and flow, and his specific reflections are useful.
You can find other material on operations management in other books, but here he puts is side-by-side with leadership and people-skills. I think it's a good mix.