I have had the newer version of the sailtimer since January of 2016 and it worked well 90% of the time. There were scattered issues of dropping the connection between the wind vane and my ipad, but could reconnect fairly quickly. As to the noise level, I only heard the noise coming down the mast on quiet days, standing next to the mast in the cabin. My issue with the unit is that over the course of the last week it managed to unscrew itself from the mounting rod (with locking nut to secure it to the rod) and fall overboard. Either that or somebody climbed my mast and took it off the mounting rod. Overall it worked as described and became a valued tool on my boat.