I saw it wednesday and found it quite cool. The shinigami looks great, L too. Light is sort of uninteresting, compared to the manga, but it's OK. Misa is cute anyways. The plot has changed, it got more simple, but I wasn't expecting much from a live action movie, so...
On the whole, I am happy I watched it. Can't wait for what's to come, though I won't be in Japan in November...