My master bathroom has lots of narrow places between trim and cabinetry that would be time consuming to paint with a brush and masking tape. this tool made the process quick and easy, and I could even cut the pads to fit into the tightest of places.
Before puchasing this I have read the reviews and almost changed my mind about purchasing this. But given the cheap price, I decided to give it a try and it worked as it was supposed to. Very easy to use and somewhat holds a lot of paint so you dont need to keep on re-filling. Im not a professional painter, but for DIY painting projects it worked great for my trims.