I just rode it 18 miles =)
Five miles to job site 1. picked up a 40lb box with a computer in it.. Bungee strapped it on .. Rode 9 more miles to job site 2 and delivered it. Changed and will work here the rest of the day... then its 7.6 miles back home with the empty rack.
The bike is surprisingly stable, and the speed is really good.
So far, my only gripe is the RD, I rigged up an old brake cable and locked it in place, but still allows adjustment via the tensioner screw that is built-into it... I've made adjustments, but I just think that my 1/8 chain could be the problem with it catching on the RD hanger...
I cannot change the chain, so I've got to find another way to prevent it from skipping around. Still it only skips once in a while and it is a mild skip - doesn't seem to slow me down at all.
I am so happy with this. I can't wait to build up the rear platform so I can move groceries with it.