I'm reading comments that mostly relate to quieter surfaces and fewer tics and pops but not much on other aspects of ultrasonic cleaning. Stuff like greater detail, enhanced dimensionality, less unwanted sibilance, etc. What other sonic benefits are you hearing?
My usage of an ultrasonic cleaner has shown that a second cleaning, on some records, can reveal even further benefits. I've also found that water temperature makes a difference too with warm being better than cold. For those whose cleaner is in a cold room or basement a heating pad with a towel over it underneath the cleaner can warm the fluid to a warm but not hot temp. My system and cleaner are in the basement which gets down to the mid 60s overnight in winter months. With a heating pad left on constantly, water temp in the cleaner is a steady 78* and ready to clean without having to wait for over two gallons of water to come up to temp.