Impressively good
Newegg, the box says it's heavy duty; Anything rated for 12 sheets at a time (and prefers to get 6) and 10 minutes of "continuous shredding" is NOT "Light-Duty"; Even the box really undersells it; I didn't notice the casters, which is really handy because the top is pretty heavy.
Not really as to say LOUD, but not quiet; If I were to do a few sheets of shredding in a shared office, I'd first look around to see if anyone was on a phone call, but I wouldn't bother to ask permission first; But if I had more substantial shredding, I'd ask first or do it at lunch.