I like it! I think I'd be more interested in trying one of these for "extended range" than I would a 7-string.
I really, really like the look with the amp knobs, hardtail bridge and pickup layout. In fact I think all the Blacktop guitars look fantastic.
Interesting that they're using Tele single-coils in this baritone and the HSH Strat. Strat pickups would seem a more obvious choice, but the Tele pickups fit the black-and-chrome image better.