I also found that not filling the cube hopper all the way up helps....as shown in my photo, about half to three quarters full. If I need more ice crushed, just add more cubes.
The crushed ice is perfect for my primary use....making either shakes or smoothies. I also leave the top off and the crushed ice hopper out after use until the unit is completely dry. I put a folded paper towel at the bottom while the hopper is removed to catch any dripping moisture.
I have added a video showing even a senior citizen such as myself, depending on your state of health, can easily use this device.