That last chapter felt like it could have been three chapters (or two and an epilogue), it even had a couple good points to make breaks. That said I really enjoyed getting a look at a larger scale military operation (though still small enough that we could get an interesting play-by-play from Johnny, instead of an after-action summary.)

I think Heinlen might be a little optimistic about the performance of the Federation's form of government, but I can't see how it would be any worse than what we have now.

I'm not sure I have any additional thoughts on the lecture chapter I hadn't covered previously, but I certainly liked the bits at the end as Johnny was getting out of OCS (the discussion with the commandant, the superstition and tradition around the pips, the types of characters going through OCS.)