Another vote for Kennesaw Pediatrics! We haven't settled on one doctor yet, still trying to see a different doctor each time and get a feel for all in the practice, but so far they have all been awesome. Love the hours, esp weekend, and whenever I call with a concern or question (FTM here so I've called many times) they always get back to me quickly. We were also impressed by the extensive on-site lab they have so they can do many tests/blood work and have results right then and there. Everything is fun themed for kids with bright cartoons and murals painted on all the walls and there are 2 running trains that go thru the waiting rooms, the doctors have treasure chests with toys and candy. The exam rooms are clean and nice, with heaters to keep your little one warm, and every restroom is super big with a full changing station. We also liked that they have separate entrances for well visits, sick visits, and newborns. Yes, 3 separate entrances. The newborn waiting room is small but completely climate controlled, they don't take any chances with your newborn.
We took a tour with Dr. Long (owner/doctor) and he was awesome, very thorough and informative about the practice policies, philosophy, and what they do and why they do it that way. He brought up topics that I wouldn't have thought to ask about and showed us everything there was to see in the office.
We looked into Kenmar (it's 5 mins from our house as opposed to the 25 mins to Kennesaw) but got really turned off by the long list of things they DON'T do that Kennesaw does. We didn't get to meet any of the doctors, and the tour by the nurse seemed rushed and incomplete. And none of the fun atmosphere as Kennesaw, it was much more clinical. I'm sure it is a great practice with good doctors, many people have said as much, it just wasn't the fit for us.
I know this was long but I hope it was helpful good luck!!