I took my then 5 year old son to see it. I really liked TPM with a few exceptions, but over all was an enjoyable movie for me.
I'm not a fan of 3D, I have glasses and the 3D glasses never seem to fit and before I had glasses my eyes were so bad I couldn't see the 3D anyway.
For me the best part of it was getting to share the experience with my son. We cheered at all the right parts and gasped and booed at all the right parts. Sharing it with him took me back to when I saw ESB in the theatre at age 3 (yes, I do remember seeing it at that age.)
I hate Hayden Crapstisan's attempted performance as Anakin so I am not looking forward AToC or RoTS. But I will take him and share the experience with him.