Disclaimer: I haven't actually ridden one, but... after looking at the website description on it....

It seems to be speed oriented vice comfort or carrying capability. That said, it's sorta like a Catrike 700 - if you can find a reasonable way to carry what you need to carry emergency spares/tools, fuel and water-wise for a 200 or 300km brevet. I'm not sure its design would suit "me" for a 400km or longer distance.

I'm sure others will eventually chime in. (My trike experience with 200km brevet-distance rides is with a TerraTrike Cruise, a Rambler and a Catrike whose model I forget [but it wasn't a 700.)