This book is an appropriate tool for an intermediate macroeconomics course-guess where I used it! The "Core" of the book is broken up into three sections: the short run (IS/LM), the medium run (IS/LM-AD/AS), and long run (Solow). This is very helpful and provides a natural progression.
Blanchard does skim over some of the more basic stuff, especially, as somebody mentioned, with the IS/LM model. For this reason I think it is very appropriate for an intermediate course where somebody probably has already learned some of the fundamentals in an introductory course. Unfortunately I felt that the Solow model was not in the depth that I would like, especially with respect to mathematics.
On that note, the book doesn't use a high level of mathematics, but the equations are there, and your algebra should definitely be up to par. This also provides a nice transition to those looking to take an advanced micro or macro course, as things tend to involve more and more mathematics as one goes on.
Overall, a good book, lacking in a spot or two, but a good textbook overall.