The flashbacks in this movie were a brilliant choice. It made the story feel much more connected to the first movie, and since Daniel Craig's version of Bond is meant to explain his origin, this is important. QoS is sorta meant to be a "chapter 2" to bond's beginning of how/why he came to be. At least that's the impression this movie gives you, and I liked it.
Some can nit pick about the title music change but what I care about is the story and this edit was magnificent. Thanks LS!