Assembly time ~75 minutes by myself. As long as you aren?t strapping down anything important and just use these for aerodynamic resistance they are great. Will likely replace the hooks or paint them. So comfortable and easy to walk in. At just over $20, this is a no-brainer. To start with the bass, it really hace some oomph. I like that theyre not too short, and I can wear them with family here. Clarks is my new favorite brand of shoe due to reliable comfort and quality. I think they go a little overboard on the faux fur lining. I can go all day many days without changing ears.