So far it is working superbly, blades aren't extremely well balanced so you will definitely want guide wires even if its not very high. Charge controller works but the red "working" indicator doesn't blink although when tested I have good voltage charge my bank. I will probably buy one more of these, we get lots of wind where I live in alaska. It only took roughly 5 hours to install including time to weld the flange it came with to a nipple. I was able to do it all by myself as well so not extremely difficult. I would recommend getting an extra pair of hands, it would of been much easier.