Spool snapped in half, "not natural damage"
After almost 100 spools from Sunlu, one brand new spool snapped in 2 pieces in my AMS when loading it. Impossible to re-spool. I provided pictures of the incident and contacted support. After 12 (!) emails back and forth the final answer was "I judge that it is not natural damage, and you need to bear it yourself." It's fascinating that they'd go this far over a $12 roll of filament. I don't really care much about buying a new one but it will definitely not be from Sunlu. If you have Sunlu rolls, make sure you glue them together before using them.