I received the DaniBlade just before the holidays and I had a chance to use it on all the cardboard boxes you get just before Christmas. It was a huge time saver.
Breaking down boxes is always a pain. You set the blade down, drop it on the floor, or forget to retract the blade and almost cut yourself. The DaniBlade stayed in my hand the entire time and allowed me to carry the cardboard to the recycle bin without putting the blade down. It seems like a small win, but it definitely eliminated a lot of frustration.
I haven't had a chance to try it on other projects yet, but the blade is very sharp and I think it would easily cut through other materials.