The only thing i had to learn was press a little harder so the glue wouldnt string when you lifted the applicator. It worked awesome.....i used for my wedding and it made it a breeze to adhear the stuff together!!
I am a photographer and artist. I use these to adhere photographs to high quality cards. I seriously tried most out there and these hands down are the best. Don't hang up smooth easy to use. Love em'. You won't be disappointed.