The pad driver is ok and was at a very good price I used it for 5 days. I did notice some of the bristles on it collapsing though on the outer edges. Other than that, it did work well and maintained very little vibration or wobble. I gave it 4 stars due to the few bristles collapsing.
We started using it on our grouted tile floor that had 20 years of build up. It has cleaned up the grout beyond our expectations using just regular floor cleaner