missed by critics

That's the minimum comment. Indeed, although assembled and customized turned to Julia Roberts (not always spoiled) this film is full of intelligence.
The acting (however small they may be) shows great maîtise cast and directing actors, on a romantic comedy like this. The images are of rare quality and music (excellent) "glue" to the film with great finesse (until the final tape, look good ......). All this shows meticulousness undetectable at first sight.
See 2 or 3 times, to see all the finesse!
When the scenario, it rises to the level of images and actors.
In short, a film which is remembered as a good book, and that revisits with delight.