Interesting review.
Something I would add is the layout of the book; it's pretty bad. Rules are very rarely where you expect them to be (cavalry rules, for example, are scattered throughout, whereas you really just want them all in one place, like in the 40k book). Of particular note is the index, which is just awful. Indexing 'Defensive Fire' under 'S' for 'Shooting' may seem logical, but it really isn’t when you're looking for it under 'D'. We must have spent hours during games searching for things like that.
EDIT: Actually, now I've gone and looked at the book, defensive fire is under both 'D' and 'S', but only lists the basic rules. Defensive fire for artillery is under 'A', on a totally different page from any other defensive fire rule. This is not logical.