All good advice. I do take exception to that particular US cleaner. I have one. It is not powerful enough. I think it also has a short timer.
I do agree with using a UC for steeping. But, you want a larger (more powerful) unit with a minimum of an 8 minute timer, Longer is better.
http://www.harborfreight.com/25-liter-ultrasonic-cleaner-95563.html is one I like.