Chris Yateswrote a review of Strider ST-4 on January 8, 2015
Familiarity: I've used it several times
My son is not yet a year and half old but he already loves his Strider. In fact, we have to hide it at times or that is the only thing he wants to do. Since this was a Christmas present, he is only able to ride indoors now but he will be at full speed once the snow melts. It is amazing to see how quickly young children gain the biking skills and confidence that it took us all years to get with training wheels. I recommend the Strider to anybody ready to get their little ones on two wheels.