Make a comparison with Catrike.
Two points of comparison that affect me is that the Catrike Road is 15 pounds lighter than the Sun CX (the lighter cromoly version) and two inches narrower than the Sun.
These figures are significant because I like to lift my Catrike into my vehicle or (when I work on my trike) carry it into the house (through the doorway) and down the stairs into my basement.
I am not certain that the Sun could get through my doorway.