Lots of advanced concepts. Its a cookbook of different architecture patterns. I think this was great and I was surprised by how many different practical solutions it went over.
The biggest gripe is a lot of it went over my head. But for everything that I understood, it really increased my understanding of cloud architecture.
To be honest, very boring book. The writing style is very dry, but informative. I would give it 3 stars but the fact that I came out with lots of knowledge gained on the subject is why "I like it" and give it a 4/5