There's been a few articles critical of Terra Nova, but I think Brian Switek's on SmithsonianMag.com's Dinosaur Tracking is my favorite so far. It pretty much sums up what I've been feeling:

I think the Atlantic Wire’s Richard Lawson hit the proverbial nail squarely on the head when he wrote that Terra Nova is the weirdest show on television right now. Take all the cringeworthy gooshiness of a 1990s family drama; borrow some plot points from LOST; apply liberal spoonfuls of science fiction tidbits from Avatar, ALIENS and Star Trek; then hit “liquefy” and pour out a show that is so overly sweet that you think your teeth are going to fall out of your head...

My advice to the show’s creators? Ditch the Shannon family—a pack of Slashers or even a pair of Carnotaurus would do nicely—and make it the Commander Taylor show. Terra Nova’s leader, portrayed by Stephen Lang, is just about the only interesting character in the whole thing. Then you’d get to keep the action and intrigue with an ensemble cast while deep-sixing the gooey family subplots. (Wishful thinking, I know.)

Here's two more critical posts: Jason Perlow on zdnet.com prefers "dinosaur poop to Terra Nova" and Mark Sumner on Daily Kos says "Terra Nova is the worst thing to happen to Sci Fi in 20 years".

Please discuss your disenchantment with the show or with the negative reviews in comments.