Adhesion 9/10 Print Quality 2/10: Bubbles, imperfections across surfaces even with temp calibration, major stringing (retraction did nothing even after calibration). Overall, not great. Good for large prints to waste filament (seems to do big stuff with little travel well ish just with the weird surface imperfections. Wouldn't recommend. If you need black filament try another brand, although Creality's Grey hasn't let me down yet.