As long as you never need to actually go anywhere other than coastal locations, I guess it’s sort of cool. I’d rather have an airplane that can go places.
Having a boat that hasn't any friction wth the water is actually pretty cool. Problem is flying it in ground effect for a long time (and not climbing or crashing). That, and I suspect the water has to be fairly smooth to support the operation.Too bad there's no good reason to exploit the benefits, the science is pretty cool IMHO.