Complex sentence: On top of that, they are also the first to feature all available wm/de's on one live ISO, hold the record of having had the largest radiotray channel list, and were the first to have a "Debian Unstable" as netinstall image.
Split into simpler sentences: On top of that, they are also the first to feature all available wm/de's on one live ISO, and hold the record of having had the largest radiotray channel list. As if that wasn't enough, they were also the first to have a "Debian unstable" as netinstall image.