C.B.
We have the Kettler Limited Edition Navigator that I ordered through One Step Ahead. I bought it for my son for his 2nd bday just last month. I absolutely LOVE it. It is extremely solid, and the tires are rubber NOT PLASTIC. It is very well made and rolls very smoothly. My son absolutely adores it.
I also love it because it has the handle so I can stear it. We live two blocks for a park. The handle is super easy to put on and off, and you just push two little switches to change the bike over from him controlling it to me controlling it. It's great because I can push him to the park and then switch it over really quick so he can play with it and then switch it over really quick so I can push him back home. LOVE IT. Only thing is the stroller wheels take a little to get used to.