I purchased this product to make some bridal invitations. Easy to put the tape into the product, and then just as easy to use. I made 60 invitations in 2-3 hours.
I definitely suggest trying a few times on just plain paper to get the feel. Another review mentioned you just pull slightly forward without holding the button and the tape breaks off easily so you can get very close to paper edges. The tape is so thin that if I pulled too far from the side of the paper, I could easily do another line and even where the tape overlapped no one could tell. The tape is VERY durable. Sticks as SOON as you put the two pieces of paper together, so aim carefully! Also mentioned in another post -- the tape that I may have pulled too far over the edge of paper easily balls up at the touch of your hand. This is a very amazing product. I highly suggest for invitations or scrap booking.
I chose this product mainly because I wanted to use 1/4" tape without an additional attachment (this is the only size tape I plan to use). It was cheaper than any other gliders of the same brand that I saw. I'm not sure if it takes other widths of tapes. It's a little big, but all of these types of tape gliders are from what I've seen.
It comes with two rolls of tape, so it should last quite some time. I'm not even close to using up all of the tape after 60 invites and some test runs. I plan to use this for my own wedding invitations in a few months!