Yes, I liked this better than Blade Runner, which is probably enough to get me unceremoniously drummed out of the Geek Brotherhood. Oh, well, I can save some money on the dues.
However, in my geeky defense: Mary Lynn Rajskub, Chloe from 24, has a small role. Although she's not hunched over a keyboard here, she does wear a headset, is (mostly) a no-nonsense hardass, and you can kind of get a Chloe vibe off that, if you're so inclined.
As to the rest of the movie: it's a dark comedy, playing off the utter dysfunction of the Hoover family. You won't get any descriptions here, though; part of the enjoyment is discovering how and why the various family members are the way they are. Although it involves—you can probably deduce this from the DVD box—throwing everyone into an aging and cantankerous VW Bus for a trip from Arizona to California. The bus is practically a character on its own.
And almost certainly you can thank your lucky stars that whatever interpersonal problems your family has, they're not as bad as the ones shown here. (If they are, well, my sympathies, and … have you ever considered writing a screenplay?)
Very notable is Steve Carell, who, in a departure from his normal roles, gives a nuanced disappearing-into-the-character performance that's really worth watching. If there's any justice, he should get a nod for Best Supporting Actor; there probably isn't any justice, though.