My new go-to shoe for long runs. I just started wearing them and love them. You even get a metal shelf on the bottom for shoes and storage. just what I needed and they fold in too I was able to determine how to update the firmware from the Sennheiser site, and was able to get the firmware up to the current 1. Getting another colour! I hate assembling things so immediately felt overwhelmed. Id rather this be a bit heavy and sturdy than flimsy and weak. I just love the shoes, they are so comfortable and easy to keep clean. The rubber bands are actually horrific, however.