As somebody else said, best bit of kit on the boat by a long way. Ours has done around 25,000 miles and I had no idea of the good customer service because I've never had to contact them (which is probably the best recommendation of all).

I agree the 'sail' cover gets UV damage so carry at least one spare. If you don't have a spare you can cover the frame with clingfilm or plastic bags (cut to fit) and tape to get by.

Also the rudder pins have been known to bend or corrode (stainless permanently under water) so carry a couple of spares. And tie the rudder to the unit, if you have a pin problem the rudder could fall off and it will sink.

The few minor problems I've mentioned are rare (we have only had a corroded pin) and the rest of the advice was given to us by other Hydrovane owners.

Ours drives the boat in light to heavy airs with no problem. Others have said to us that they've had problems but it always turned out to be sail balance. You must balance the boat before engaging the vane. In fact the vane is a good test of sailing skills. Hope you enjoy it, I suspect you'll love it.