The charging system seems to be fine. I only have maybe 100 miles on it at this point. I would reccomend it. My only real complaint is that the epoxy on the stator is brown instead of black. I am going to paint it over the winter. I am only running a small battery to give the ignition enough juice to kick start the bike. I am not using a starter. I also changed the tail light to a LED light. So it doesnt really tax the charging system too much.
Let me know if you have any other questions.