I made sure not to read any articles about Ep III until I'd seen it. Well, this last weekend, me and my wife went to a matinee.
I loved all the parts I figured I would; the new ships, fighters, droids and alien "extras" were all as impressively imaginative as I'd hoped. The fight scenes were a little too cartoonish, but they were all still exciting enough so I'll agree with your there. I loved the physical transitions Anikin went through. Just having him turn to the dark side would have worked, but watching the countenance of the dark side overcome him was great. It went far towards making up for Hayden Christiansen's lack of acting ability.
The parts I knew I wouldn't like, didn't disappoint. They were as pathetic as I'd feared. The "love" scene on the balcony HAS TO GO! Sorry George Lucas, but there is no way you can work the word "Naboo" into a romantic line, especially when the rest of the dialogue is so weak. But we expected weak dialogue now didn't we. To me the only part of Anikin's transition to the dark side that was "abrupt" was the whiplash inspiring turn from Anikin screaming out, "What have I done!" to then kneeling at his new master's feet. Anikin was always messing up, but every time he did, he apologized and promised to do better next time. Just acknowledging his crime and then diving in with both feet didnt' seem to track with the character.
Overall, I really liked it a lot.
It's also fun to watch the 4, 5 & 6, with the whole story behind the "prequels". It's hard to watch them the same way now... which is not really a bad thing.