I have two XF230's to supplement my two MP40's. They are noisy, especially at first, be seem to quit a little after time. The first thing I would recommend is to throw the useless instructions in the garbage and watch the YouTube videos on how to use the controller. It was a little confusing at first, but once you get the hang of it it's easy. Overall I am happy with the purchase. I have only been running them for about two months so I don't know about long term reliability.