if I buy an ultrasonic cleaner for my records will I be able to hear the difference?

I suggest you take a few of your recently-cleaned records to a dealer who sells ultrasonic cleaning machines, and have him clean them for you. Then you can decide for yourself.

For me, the appeal of ultrasonic isn't just cleanliness. It's the one-button "set it and forget it" convenience that something like the Klaudio offers.

inna

Someone said that you don’t want to clean records with ultrasonic more than once or maybe twice, that it does something bad to the vinyl.

Who said that?

I use the Klaudio cleaner and haven’t had any damage at all to my LPs.