What they got right: Lee continues to have the best knowledge (or proper researching skills) of any Who writer I've seen thus far. I do know that he happens to be a fan of the classic series, but he also uses the new series well. Like some of the 9th Doctor stories, we get to learn the results of the Doctor's past evil-fighting operations, and just what happens to the villains after their defeat.
What they got wrong: I just hope Lee remembers that they had it coming, especially the Sontarans. The Ogrons and Sontarans as a whole live a lifestyle that's made them enemies of the Doctor (mercenary culture and evil military force respectively, although I haven't caught an Ogron story before this and just know from what I've read on them), but from what I recall, the Draconians as a whole aren't either, and many of them get along rather well with the Doctor, including a recent one-shot.
Recommendation: As always, a Tony Lee-penned Doctor is a Doctor worth reading.