This is my first review here, so I'm going to keep it simple. New Girl is, in my opinion, a well-written and very funny television show. When I say it's hilarious for the target audience, I mean teenage girls and college students who love Zooey Deschanel. Based on my own experience with shows 'across the pond', I suspect the first reviewer didn't find it funny due to differing humor and/or not being in that demographic.
...Or maybe it was the over-quirk factor present in the pilot. Pilots always push too hard. Jess (Zooey) can definitely be abrasive and unfunny if you're not fond of energetic weirdos.
The use of continuity and (subtle) character development are some of my favorite things about New Girl. Jess goes through changes with her job that effect her behavior in the apartment. Schmidt has an ongoing thing with Cece that is slowly building him up. While he's still a sex-hungry self-unaware douche, he's begun to show a little more thought and emotion. Nick is slightly less developed... if anything, we've just been repeatedly reminded how helpless he is. Winston is the straight man and token black character. Nothing to see here.
Although New Girl is primarily a comedy, there are enough heartfelt scenes (mainly dealing with relationships) that are a pleasure to watch. I really feel they add to the depth of the show.
As most comedies, it's either a hit or miss for a lot of people. Do you enjoy pop culture? Do you like cute things? How about sensitive guys and making forts and eating cupcakes and rooting for the obvious couple? Well, you might like New Girl.