I would love to go to UBI or the Barnett's school, but since I don't live near them the extra cost of room, board, and transportation is very prohibitive. I did an REI one day bike class. everything was very short and abridged. It taught me the basics of keeping my drivetrain in good order and how to dismantle it. I wish I could have learned how to set up cables and repack my headset but time was so short. I would recommend it for learning how to take care of your bike and to avoid taking your bike to the shop for its annual check up by doing it yourself. I don't think it taught me enough to build a bike up from parts.