Aaron, I'm (mostly) glad to hear it! pm me if you would like me to mail you an 18T sprocket gratis. I can include aluminum rims (36H) for the cost of shipping.

AW hubs are only a joy when geared right (the 18T will help) and working well. Unfortunately the Twenty was set up with a cable housing that runs the full length of the cable, and this has a severely detrimental effect on shifting. I can't think of an easy fix for that (but new and well lubricated cable might help a lot). Those of us who love them are comfortable with the occasional need to open the hub up and see what it looks like in there. If you won't be bringing yourself to do that, you should find someone who does.

Get some rattrap pedals --cheap BMX pedals are good.

You should realize the Twenty was originally designed to run 20 x 1 3/8 wheels, which are bigger than what you got. It makes a difference! This may be why your BB seems so low.