Mine arrived this morning.
Well, I dont want to sound over-enthusiastic, and my opinion is still only mine and only concerns residential but I think its the perfect brush.
Particularly the dual-trim, cant comment on the second version of the single trim.
But this new revamped dual trim so far as I am concerned has just the right amount of bristle stiffness, splays just right and the shorter middle bristles help to scrub and keep pressure applied to the glass. Reckon it'd be a perfectly adequate first clean brush too.