Got pros: a normal grinder, I took it to repair an apartment to grind the walls . not quite suitable for this, a lot of dust (even with a connected vacuum cleaner) and the surface to be treated is not large, it works well on wood . With its cons: after a day of grinding the wall, it began to vibrate strongly, disassembled, washed all the plastic, removed all the dust from the moving elements, and stopped, inside the case there are a lot of small secluded places for dust to accumulate. The body is easily soiled, the drops of paint that have fallen after drying are not removed.