I also got my copy some months ago and have "playing the french" in my bookshelf. Both books together look like a great cornerstone to build up a serious repertoire against 1. d4, 1. e4, 1. c4 and 1. Nf3. The introduction texts are also a very good feature. The quality of the texts is comperable to Matthew Sadlers outdated book on the same topic.
I like the system against the catalan much better than the stuff in John Cox book based on the Kramnik - Topalov stuff from the 2006 WCC.
I also like the system against the london. Some time ago i learned the system from John Cox "dealing with d4 deviations". That system with early Bf5 is good, but you get some move order issues or have to learn slav setups too. In my test games with the "new" stuff i get good positions with that simple system (d5, Nf6, e6, Bd6, c5, 0-0, b6 followed by Ba6).
I'm not sure if any other queen's gambit book author gave attention to systems like 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3. That is also included.
In "Playing 1. d4 d5" there are some pages for the coverage of the blackmar-diemer-gambit. For starters i will play 1. d4 d5 2. e4 e6. Maybe i will come back to more ambitious lines against that move order later. To add one more sideline i don't find: I also don't find anything against the diemer-duhm-gambit (1. d4 d5 2. c4 e6 3. e4) in both books.