Yes, I used it for a conny roof clean today. Really pleased with it, light and shifted the muck with ease. Loved it and I think I prefer the bristles to the black brush.
I was always concerned with the mono brush that it might clean in lines. Like when you pull a brush over sand, you see lines left. The black had more of a mop feel to me (if that makes any sense) and I was happy the glass was all being covered. The way the new extremes splay though mean I am happy that the glass is being covered with either the black or white. I do feel that for me the white will last longer than the black.