I was already about 1900 Elo over the board when I picked this up, as I had been struggling with black. I think this is a solid repertoire — particularly the decision to go with the Scandi as the main response to 1.e4. However, I do wonder why Moret chooses the Albin + the Dutch Stonewall as a response to d4 when both could be replaced with the Classical Dutch, which I have slotted into my repertoire instead.
To be honest, the Albin seems difficult to play at the 2000 level at best, and dodgy at worst. There are some critical lines where white plays an immediate nbd2 > nb3 to hit d4 quickly, and the book does not spend enough time addressing these kinds of lines, which are increasingly popular. Instead, he focuses on the g3 lines that are, admittedly, easier to play for black — but you won't see too many white opponents who go down this path these days. Basically, having to book up on the Albin and the Dutch stonewall seems counter to the rest of the book, which is all about efficient opening choices (hence the Scandi). Still, this is a great book for explaining the general ideas of the openings, and it's nice to actually have lower-rated club games included, as these are the types of moves you're likely to encounter at the below-master level.
I'd recommend this book if you're struggling with the black pieces in particular, and I'd supplement it with "Smerdon's Scandinavian."