Printing speed is fine, not the fastest ever, but also not slow enough that you notice it. Excellent shoe quality. However, I am noticing a slight decrease in quality and longevity in these razors. I was looking for a good comfortable shoe to wear in the winter instead of my comfy athletic shoes. Shanling UP4 compare and contrast:For starters, I updated my firmware to ver 1. They were too big for my 4th grade daughter and even myself. They are so good for my feet! The cross bars did fit and were pretty easy to install. Generally a well designed product, however, I would have offered black powder coated hardware. before making final judgment.