I am using DC++ for a long time and it is great program. And the community of course
I have a slow connection when compared to others but it is sufficient for me. After long usage i realized that due to my small ul bandwidth (64k) small files always completing and everyone gets what he or she wants. But when file sizes are increasing this satisfaction decreases. Because it takes about days to complete 700megs file with my upload. I'm restricting slots for more speeded uploaded. (Customer satisfaction
Also uploading incomplete files should not be counted in share size. This is another issue.
Good Luck...