I am on a second floor apt and the quiet operation of both washer at the highest spin speed and dryer is even more quiet than a traditional or HE top loader in my experience. Absolutely phenomenal technology and amazing to see and experience. I took the plunge and invested in the pedestals for the extra height for my own convenience and comfort for less bending over. Be confident in the lack of vibration and noise on the 7500! Your installer should run testing and you can be confident everything is level and correct.