The issue with the AoE is the lack of practice problems and references when questions arise. For instance it's MOS and BJT parts glaze over how multi-stage amplifiers chain together and how the choice of one can effect the later (e.g. how your buffer effects source-follower).

Theory is good, but seeing how the implementation works is just as important and the AoE can glance over that because it's a sort of book of everything.

In short, it's a great reference manual and I have to sasy it's my favourite thing to start any question I have with, but for a beginner they need something that allows them to practice not just read about it.