It's faster than DD, and if everyone shares each archive he downloads, we'll have a lot of alternate users to download from. I've been using DC++ for some years and it can be a great way to distribute manga.
To share files, you just have to go to settings > sharing. Add all folders you want to share, and then select how much slots for uploading you'll have.
I also have a suggestion. If everyone shares the files exactly as they where downloaded, we can use "search for alternates" to find more archives like the one we selected.