Works well both on its own terms and as a document of the film, which is unsurprising given how closely woven music is into the film itself. It's a pleasing mix of the familiar (two of the Smiths' most iconic songs in "There Is A Light That Never Goes Out" and "Please, Please, Please, Let Me Get What I Want", "There Goes The Fear", "Mushaboom"), the sort-of-familiar (most notably, sweet covers of "Here Comes Your Man" and "Please, Please, Please" by Meaghan Smith and She & Him respectively) and songs that I didn't know before but remember from the film itself (Regina Spektor's "Us", which plays over the opening credits and does much to set the tone for the film and its soundtrack, has particularly stuck with me).
Missing, sadly, are the original cuts of the Nancy & Frank (Black) songs that Summer and Tom do in the film; likewise, though less regrettably (although I wouldn't have minded had it in fact been included), "She's Like The Wind" - but you can't have everything. All up, this is a very, very charming soundtrack indeed.