I have had a 3D 290 tender for 18 months now and go away every month to Scotland where I go on different lochs to follow my hobby of photography and what I laughingly call fishing. I am always on my own and have to handle the SIB, engine and launching so for me the 3D is ideal along with an ultra lightweight aluminum trolley for launching. As I am in my 70's weight is a major consideration if I want to continue On the water.
As you can see from the photos mine is a 290 black tender and I power it with an electric engine, the Torqeedo which is not built for speed but has a battery as part of the engine not requiring a separate battery to be carried in the boat. On the lochs where wind can be a problem I can travel between 15-20km off one charge.
Unfortunately I do not have the weather you have but never the less I find the 3D tender a pleasure to handle in breezy or wet conditions and an absolute dream to inflate/deflate and pack away. As you can see I transport it quite comfortable in the back of my motorhome.
Look forward to reading your review and seeing some pictures.
All the best