single bowl and drainer here, I replaced my cheap sink in my new build. I bought a franke, one which overlaps the worktop edges slightly. Had to measure carefully, the plumber does not provide these top quality sinks. It was expensive and took weeks to arrive.
When it arrived the corner was bent but using cloths and a rubber mallet, I beat it back into good-enough shape. The plumber used a very good fixative and the untit is solidly down on my worktop. He ground the worktop edges down to fit the unit.
It is a lovely unit, yes stainless steel can scratch but barkeepers friend keeps it pristine. I have used it for eight months and am not that careful with it, would definitely would buy a franke again. The first sink was a thin stainless steel
You can also buy a special stainless steel cleaner/reviver, I used that once and would use it again if selling my house but in the interim bar keepers friend does a lovely job but daily I use the orange method spray