I pretty much agree with everything you said. I was somewhat encouraged by it, so I'll post my review here. I agree that the HD camera looked much better and more natural this time around. Characters blended into the CGI backrounds much better. Overall the CGI was good, but still too video-gamey at times - a lot of the scenes were over the top. While some of the dialogue was laughable, overall I thought it was infinitely better than the first two prequels. My favorite parts were actually the exposition scenes in the middle, even though Anakin's turn seemed rushed. The only problem I had with Anakin's character is that his personality is nothing like Vader's. In the OT, Vader is relaxed, methodical - always in control. In this, he's all over the place. Maybe 20 years of doing nothing chilled him out a bit for the OT? And yeah, Grievous was pointless.

Anyway, it was better than I expected.