ain't bad
When I got my 25' the PO has one on. You point the boat where you want it to go go and push a button and it takes that magnetic heading and keeps heading that way. I can set it, go up and change the head sail, go below and make some coffee or something to eat. During gusts, the boat will head up and then fall off as the gust wanes. Sometimes I use it just cause I feel lazy and other times when I need both hands free to reef, drop sail, use the binos to see something closer up. I love it--well worth the money to get one. They are designed to use very little power. I go about 3 days on a charge but then I use a stereo a lot too. A lot of times to save power I push the off button after it hones in on my heading so it holds the tiller in that position like a tiller tamer.