Fairly soft
I have their squeegee version, which is feather soft; I was hoping this would be a lot stiffer — it’s still pretty soft, good for scrubbing gelcoat,probably not for a deck (unless, of course, gelcoat.)
Mine arrived with two clumps of bristles unattached; they’re bound with maybe 1/8″ of metal wire at the bottom; I’m sure they’ll fit back in their holes if I can find them, which I can’t — so they’re not missed.
Good water flow, as with their other model, when using their pole. Now if they’d make one out of cinderblock for an outdoor deck…