It's a romantic comedy, ok? It won't leave you with a life lesson or change your life. Maybe it will but that's besides the point. The purpose of this genre of movies is to entertain and in my opinion it does achieve its purpose.
If you enjoy -or you are in the mood- for a light romantic comedy with a pinch of humor, I would consider it as an option. I did laugh out loud but I'm a bit odd, so take that with a grain of salt.
TWO VERY IMPORTANT DETAILS
1) The main character sometimes talks to the camera, you have to be ok with that.
2) It's a romantic comedy. Romantic comedies are cliché. If you do not like clichés then do not watch romantic comedies. There will be at least one in all of them (if not twenty).
To sum up, do not expect a life-changing movie. Is it entertaining? I believe it is. Is it funny? It made me laugh. Will you be missing out on the best romantic comedy on Earth if you do not watch it? No.
PS: It is family-friendly :)