I definitely recommend Lollilocks on ValVista and Baseline. It's a little on the girly side, but they do have a car or hippo for the kids to choose from to sit on and a nice waiting area/play area for the children.
I have tried several of the other children's salons and have found this one to be the best. My son has a lot of hair and they have been the only salon to cut it right in the four years of his life. We have taken him to cut his hair every other month since 7 months old. The other salons really only knew how to cut a boys hair short, real short. These were just my experiences, but thought I would share.