The U45 is a nice machine and very versatile. It is a step under the Kx161 in ability but a better Choice than a KX121.
It is really hard to beat a KX161 in ability and price. They really hold there value and where not as overpriced as some brands when new so resale is a better value even though they depreciate less than say a Cat in this class. Not many machines in it's calss that will outperform it.