I’ve stated this in other threads, and noise level is one of the drawbacks with this compressor. It runs at 3450 rpm and puts out as much as 101 db at a couple feet away. I built a sound insulated and ventilated closet that drops the noise level drastically.
What sold me on the QT-54 was the brand, price, warranty, the fact that it physically fits in my home garage while still being able to park both cars in there, and that it only requires a 30 amp power source, which my garage already has. Running 40-50 amp power to my garage would have been a lot of work and expense in my situation. An 80gal, 7.5 hp would be nice, but would have come at a much greater overall expense. Just things to consider when shopping for a home use compressor.