The H2 SXE is just as heavy as a 14R, likely as fast. Ergos are yet to be quantified, but the kicker is $; It's more complicated than a 14R and will likely be more expensive to service as well as purchase. For $25K, you could hang a lot of go-faster mods (not to mention comfort mods) on a 14R. Some of the complication may have to do with the emissions, but the blower is another whole assembly to deal with. Despite the small hand space on top of the engine, the 14 is pretty easy to service once you get beyond the fear of removing the cams to set valve clearances. Again, another aspect yet to be quantified on the blower bikes.
It may be a pig, but it's a pig with a rocket in it's ass!