Main point: Great build quality but not had long enough to determine if stuck button issue in installation issue or product defect.Long review:I have a insinkrator push button. The button cracked in half. Could not bare the idea of paying $25 for another piece of crap. (By the way to avoid this whole issues check the nut on the button. As it backs off and loosens it puts side stress on the button threaded shaft that lead to the crack but if your here my guess is this is a moot point)I saw this one and the idea of brass was attractive and I have a boat and reminds be of a quality thru-hull fitting.It does not disappoint in that aspect. Heavy solid build feels quality. Like the set screws to avoid the nut from backing off like the original one. No one likes crawling under the sink to retighten a nut or anything else.My one issue is no instructions were included. Pretty simple but simple numbered diagram would been nice. I just used my original air hose and did not realize there was lock nut to hold down the air hose that came with the replacement hose. Also it was unclear to me which side the black rubber gasket went at first I figured it out but diagram showing thru fitting would explain that.Only had it a few days so I can’t say for certain any performance issues. Several reviews about button getting stuck. I have an idea what might actually be the issue. When I first put this together I played around with the function not having fully installed using the original air hose and sometimes the button got “stuck” and could not turn it off. What was actually happening was the air hose seal broke this thing works pneumatic pressure. If the seal broken the button somehow gets out of sync. Once in properly installed and added the air hose locking thread I could not re-create the stuck button issue. But time will tell and will update if I have issues.