The review from Entertainment Weekly sums it up better than I can:
Now I am a huge George Clooney fan and since I'd watch a movie about him watching paint dry, I might be biased. But I truly think he is an amazing actor who really embodies the characters he plays and make people care. And I never realized how soothing his voice was until this movie. Very peaceful, very calming.
"A rare and sparkling gem of a movie. It’s light and dark, hilarious and tragic, romantic and real. It’s everything Hollywood has forgotten how to do."
All in all I'd highly recommend it.