Sure! I use it "as intended". I pay later. But I only use it when I know that there's going to be money later (I have money now) and I plan my economy pretty thoroughly. It gives me some extra space when I need it, and makes it so I don't have to put out my own money to companies I haven't purchased from before, which can be useful since I tend to look for the best deal available and that often leads me to smaller shops that have no ratings or other reputation online.

I can get the product in my hands before paying for it, so I can verify it's what I wanted. I also don't spread my debit card info around.