Not too soft and not too hard but just what I've been looking for to do the filter lines on carpets . it has that perfect angle without having to struggle . Haven't tried it on grout lines yet but I give a 5 star or 5 thumbs up I say buy one it worth it. Thank you
This brush is very sturdy. With about 8" of bristle length, I only have to go back and forth a few times to get edges scrubbed. I would like to see the outer rows of bristles arranged in an offset pattern. This offset would allow cleaning to the outer edge of the brush frame. Still, very happy with it.