I saw this a second time--a friend wanted to go--and really liked it. (The first time I had a cold and was in a pretty grumpy mood.) It's not a great film by any means and it doesn't deserve to (and will not) win BP, but it does have its charms IMHO.
Is it just my imagination, or do quirky comedies (even well reviewed ones) generally not do well on this site? SLP this year, The Descendants last year, and (dare I say the name) Little Miss Sunshine. What was the reaction to Sideways?