Keeping ratio is hard indeed. But grabbing the fresh torrents while they have 1-2 seeders and not downloading much older torrents in the beginning, will reward you eventually. A seedbox would be a big help too.

As far as the range of music, I wouldn't call it amazing. It is very good but there are other music trackers with really amazing content and range, mostly in flac.

Generally they are a nice tracker, if someone can't join what.cd. or the other top flac trackers.