"Handiest" Painting Tool: How to Use a Hand-Masker for Taping (House Painting Tips) 

that is a horrible friend

Well, that's too bad, if the tape wouldn't come off it's roll that's the tape's fault. Even if using white tape it's important to get decent quality white tape, not the cheap stuff (which is usually the kind that won't come off the roll properly). But I'm sorry you had a bad experience. I've used a hand-masker for years and it's invaluable. Occasionally it messes up and you need to fix things, but for the most part, if you have good quality tape and paper and a sharp blade, it works pretty darn good.

I had all sorts of problems with my masker, much like these, until I realised I was making a fundamental and obvious error: you must use narrow tape like that shown in the video. The slightly wider roll I had been using wouldn't unravel easily enough, causing endless jams and misfeeds. It was all good (Kip) tape, but when I switched to the narrow roll because I'd run out of the wide stuff, everything just worked.