It is technically quite a neat package, all hydraulic (so I reluctantly admit probably quite robust at the wet end) and can move the boat over the type of terrain/incline shown. But what I can't figure out is how much benefit that gives you over a trailer? You pay a fortune for the capability, have the whole wheeled propulsion rig (and electro(?)/hydraulic pumps etc)
to worry about on top of the rest of the boat. And then have three bloody great legs with quad tyres hanging off of the boat. Which can't really do wonders for its handling or seakeeping.
Basically I see it as a gimmicy toy, if you can afford it and have an application for it, then fine. But you will be putting up with compromised boat package, and you can't drive it off down the pub, just up the beach and onto its trailer.
Now if you could leave the legs down, hitch it to a car and dispense with the trailer, then that would be something else... But Allyduck came up with that a few years ago!
Personally, I can't see the need for it, but that isn't to say others couldn't. So, point taken Polwart.
Still speeding though.