I bought this item months ago, and only had tested the chopper/hand blender without food in it. Both did turned smoothly and quickly. However, today I decided to use the chopper (not the blender yet) and discovered it wouldn't work with some food in it. All I put in was four shelled boiled eggs and a small tomato, and it acted like I threw in a thousand tonnes of cement. Why have this item if I have to do most of the chopping? It defeats the purpose.
Suffice to say, I angrily ended up chopping up all the food myself as the demonic machine lay HOT in the corner as if it did some serious hard labour. I usually check my items thoroughly before the return date expires but this time I sillily opted to put trust in minor testing of this OY-ster (it's made by Oster). I wish I tried it with food inside months ago when I could've exchanged it or gotten my money back. Always check your items thoroughly!