Swedish-Salmon. It will depend on boat shape and weight, how high the boat sits off the water including the canvas cover or hard top, how much prop of the trolling motor sits below the bottom of the boat and weather conditions.
My old boat was like a sail due to the huge flared bow and tall canvas top, so when the wind blew hard, I always had to use the main outboard when trolling into or sideways to the wind.
My new boat sits much lower in the water, not as much bow flare and the kicker gets a good bite due to the long shaft that gets the cavitation plate and prop well below the bottom of the boat. No small trolling motor is going to do a good job when the wind is howling and the seas are extremely rough. If you always fish in those conditions why not consider an autopilot for the main engine and troll with that and use something to slow you down a bit?
With that being said, I love my Fishing Partner "Otto" and would never be with out one again. No more doing circles when tending to or getting the gear in and is especially helpful when you have in-experienced fisherman with you. I have used it in the Ocean and worked great even in the swells. Just point the boat in a direction, click the remote and you are on your way. Hook it up to your GPS and follow a contour line or route. I also love the wireless remote feature also.
If you are going to install the unit yourself, buy an extra bottle of Bio-Soy oil as they barely give you enough and if you spill any bleeding the system you will not have enough. Also getting the unit set up for the first time on the water can be a challenge also since the TR1-Gold does not come with a display panel (at least when I bought mine) and had to use the wired hand control to program.
Click on the link below to see what challenges you may run into:
PS, get a hydralic kicker bracket from here http://www.islandsmarinecenter.com/
or an OMC bracket from your local Evinrude dealership.