Finally saw it for the first time this past weekend.
I just found it terribly muddled, like they were trying to put too much stuff into it. I'm not a big fan of the CGI, so a lot of the time, the Clones looked bad walking and running. I actually chuckled to myself a couple times at non-humorous moments in the film because it was so over-the-top.
A few things I did like about it included all the different Clone markings (if I still had money to collect, I'd be chomping at the bit to buy all the different Clones) and Ewan's performance. He does a perfect Obi-Wan.
So, after completing my Star Wars viewing, I'd rank them:
1. Star Wars
2. Empire
3. Jedi
4. Phantom
5. Clones
6. Sith
Phantom has really grown on me. I like the entire look of the movie, Darth Maul saber fights, the Pod Race, the fact that Yoda hasn't been CGI'd, and even young Anakin. Jar Jar is still is a little annoying, but it's definitely my favorite of the prequels.