I found this stuff to be very easy to use and very good to wrap, but of course there are tricks and things to learn to fold really well. One thing I wasn't expecting but that keeps happening is that a hole randomly forms in the film. I doubt it's a film and its human error, but I tried to tweak the heat settings, timing and anything else I could think of. The foil is still great for my applications but if I need a real seal I would prefer a thicker material to ensure the hole doesn't appear accidentally.