Sadly, I wasn't blown away by this. It's a bit stale and just doesn't leave you with a feeling of 'wow'.
The story line is a bit far fetched but original I guess. It could have been a really good idea but the film was just missing something. There were sweet moments, and funny moments, but nothing outstanding.
Or perhaps my problem was Sarah Jessica Parker. I'm just not a big fan. But I do quite enjoy Matthew McConaughey (always gets a laugh out of me). However, the supporting cast really stole the show: Zooey Deschanel, Bradley Cooper and Justin Bartha had my attention more than the main couple.
Overall I wouldn't recommend buying it. I'd rent it or borrow it or something. And save it for a rainy day when there's nothing else on.
It's a romcom so if you like them you might enjoy this.