The Zulu One is the perfect bike for transitioning to a pedal bike for younger and shorter children. My 3-yo had been riding a couple of different push bikes since he was one, and has been asking for a pedal bike. Although he had never pedaled anything before, he was able to balance and started pedaling on his first ride. The additional short seat post and overall ergonomics of the bike are perfect, and the bike will grow with him for several years.
I also like that there are real hand brakes instead of coaster brakes, and they are very adjustable. My son is learning to use them instead of learning to use coaster brakes, which he won't have on his bigger bikes. This was a major selling point.
Finally, the build of the bike is top-notch. It's not too heavy and will last a long time. This is good not just because it is bound to take some hits from my son, but it will retain it's resale value for the future.