First learned of the Nycor flushers after watching the Vancouver Carpenter on YouTube & was intrigued. As a small remodeling & tenant improvement contractor, i have many smaller projects that don't warrant me buying a full set of professional tools(bazooka;flat boxes;pump; etc.). I hand tape all my jobs. What always slowed me down is taping & finishing the inside corners.These definitely helped, but I recommend using a corner roller first after taping before the flusher. They definitely work great for 2nd & 3rd coat of mud though.