So,
It's probably the same software that's in the GT series multi FX pedals. But this way, you don't get as many pedals/options, and they get to charge you an undisclosed amount of cash for any extra pedal models that they release for it next year.
It's cool that it's in the boss pedal format, but... seems like a way to pry more money out of guitarists without really offering much.
There's a few alternatives in this one pedal/many virtual pedals inside design concept: Zoom & Line 6 come to mind. Handy if you need an all rounder on your pedal board, but otherwise it seems pretty limited.