I book George for my 4 year old son's birthday party. The party had many 4 year olds and several older children, up to age 16. There were many adults as well.
Everyone at the party enjoyed the show. George arrived promptly and was a true professional throughout, especially in terms of entertaining and dealing with a load of hyperactive preschoolers. The magic tricks were great and there was tons of audience participation. The thing that sets him apart even more is his bubble art at the end of the show. It's really spectacular. The mini bubble wand the birthday boy got at the end worked great.
Overall, if you need to thoroughly entertain people ages 3 through 90, this is your guy.