Stainless steel trolleys may not be for you if you worry about noise, scratches, or fingerprints, since metal, in general, is susceptible to these.
Especially if you have metal cutlery or tools, they will clang against the stainless steel surface of trolleys.
This may be bothersome; although, you can soften the noise with cloth or napkins.
Scratches can also appear on stainless steel surfaces, but that depends on the polish you choose: mirror polish will suffer from scratches the most, while a brushed finish will mask scratches.
The same goes for fingerprints.
These can damage the aesthetics of the trolley.
