SPOILERS
I finally saw it. My first impression within the first 15 minutes was, "How could I have expected anything good??", but I felt that it picked up after that initial reiteration that acting in the "new trilogy" is non-existent. Okay -- one of the coolest parts in any of the 6 movies was R2D2 sitting in a pile of drones he TOOK OUT!!! R2D2 was wicked in this movie!! From there, things started being not TOO horrible. Having watched Clone Wars really paid off (although Clone Wars is better than all 6 movies put together and I didn't just watch it for the story) -- everything made SO much sense! Mace Windu is the coolest character in Star Wars (episodes 12-13!!!!) -- Grievous doesn't cough horribly from a decimated chest cavity for nothing (that's right....MACE WINDU!!)
I liked how everyone kept tricking me and making me so unsure about whether Palpatine was actually Darth Sidious or not...I was so confused!
I was disappointed with Ewan McGregor's acting. Obi Wan and Qui Gon were awesome in the first movie. I think the Anakin actor just brought everyone down with him. Natalie Portman was horrible too

These actors were GOOD in the first movie (I realized this after watching a bit of the first after finishing the third...)
Anakin turned to the darkside too easily. The Emperor was just, like, "I'm right -- I can save Padme. Follow me!" And Anakin was just, like, "Okay, just let me kill my jedi master." Then for a moment he's a little regretful, but the moment passes and he's dubbed Lord Vader a minute later.
The best thing I have to say about the movie was how COOL it made the rest of the sectology(??)!! I immediately HAD to watch the fourth movie, and GEE WHIZ it's SOOO much more amazing now!!! I kind of noticed how they dumbed-down the technology aesthetics near the end to match with the old school big bulky white silly computer walls of the original trilogy -- good. I really didn't like how they SUPER over did all their fancy technology in the new movies. The first one is by far the best of the three in my opinion -- the acting was decent (especially Anakin...obviously played by another actor altogether), the computer graphics weren't too horrible overdone (to the degree that the last 2 were)...
Now I also really wish there were some hidden Qui Gon references in the fourth movie, or something. Qui Gon was so sweet (cameo appearances in Clone Wars!!!!!).