I loved it. I thought Obi-Wan absolutely stole the movie. What a job by Ewan!! He has been BY FAR the best actor in the prequels; JUST ahead of Ian McDiarmid. There were some stinky aspects but the good GREATLY outweighed the bad.
GOOD:
-The duel(everything I thought it would be)
-Palps(as nasty as I thought and hoped he would be)
-Anakin/Vader(Hayden really matured a lot and his acting improved greatly)
-General Grievous(seamless CGI and the coughing was awesome!)
-Yoda vs. Sidious(I was against it at first but now that I've seen it I think it was really well done)
-Lightsaber battles(Obi-Wan/Anakin vs. Dooku was great, Anakin killing Dooku was AWESOME, Obi-Wan vs. Grievous was great even though it was short, Obi-Wan vs. Anakin was amazing, Sidious vs. Mace was done well and Yoda vs. Sidious was done well also)
-Duel dialogue(Obi-Wan - "You were my brother! I loved you!" Anakin - "I HATE YOU!!" Wow...those were just phenomenal)
-Becoming Vader(When he destroys the room after Palps telling him he killed Padme...wow. That was amazing)
-Ending(I'll admit that the ending had me in tears. The whole Tatooine shots with the twin suns WAS A New Hope! Also the use of the ESB Finale at the end was great too. It was really well done)
BAD:
-No Mon Mothma, Shaak Ti or formation of the Rebel Alliance(too much was cut and it didn't help the flow)
-Jedi purge(FAR too short and not enough detail. We should've seen Anakin going head to head with some of the Temple Jedi and more of the clones 'cleansing the Temple')
-Grievous(He could have and SHOULD have had a bigger role)
-Wookiees(Why show them for about 15 seconds total? They were so built up and then no attention was paid to them)
-Tarkin(ELABORATE!! Only real fans will know who he is when you show him for 2 seconds and don't have him talk!)
-No Qui-Gon(We find out that he has discovered how to become a Force ghost...ELABORATE!!!)
-R2 TOO much(Come on with all the R2 abilitites. It's enough already. I liked R2 more when he just plugged into outlets and solved everything)
Like I said, the good outweighed the bad immensely and I really enjoyed it. Hopefuly with more viewings, I'll enjoy it even more.