We were given the BL770 as a gift and liked the features of the unit, but the 72oz pitcher cracked and started leaking within a couple months of normal use and hand washing. We purchased a replacement pitcher and had the same thing happen within 2 weeks of normal use and hand washing. Looking at previous reviews, this appears to be a consistent issue. It's too bad, if Ninja could fix that quality issue with the pitchers, the functionality of the blender is great.  For now though, we'll be looking at a non-Ninja replacement blender.