If you like Meryl Streep (and who doesn't?) and Amy Adams (ditto) and Stanley Tucci (ditto ditto) and happy, feel-good movies, you will love it, too. And the fact that it is based on a real story makes it even better.
I did like The Blind Side and I did think Sandra Bullock's Oscar-winning performance was good, but IMHO, I think some popularity and sympathy voting (Bullock had never won one before and Streep has) accounted for her win this year. I believe Streep deserved it. She had Julia Child down pat.
Anyway, if you haven't seen it, you should.
You really should.