Product review (4 stars): Good but Won't Replace a Good Brush
This attachment worked well after a little practice. I made the mistake of rushing this across an entire ceiling corner and after painting the walls & ceiling (one color, at the customer's request, [to each his own])I had to re-do the corners w/ a brush. I tried this again on a another paint project, this time minding feed & speed and it worked way better this way. It's tricky to master feed at first, the paint will gather on the bottom edge and drip if one isn't careful. Faster than the conventional "dip & paint over top & bottom" w/ a brush but not a complete replacement since I still needed a brush for the more acute areas that the bristles on this couldn't reach. I've used it for around 200 lineal ft., maintained it and the bristles are still soft. So far it's paid for itself & then some. For some reason I imagine a paint crew specializing in rental rehabs having several of these for a faster turn around .