I have been using these refills for the past few years and can't find a better one.
I prefer the repositionable type because it gives me time to make sure that I have the item in just the right spot - this means that I don't have to try to pull it off and damage the
area I am working on.
I use the Xyron 150 so very much that it is wonderful to have 6 refills at a time. Small die cuts and letters slide through the holder and instantly have enough glue to affix them to my scrapbook pages. Love, Love, Love this product.
I LOVE these cartridges! And, this was really a good buy. I use these instead of glue, especially on small parts and the paper for the back of envelopes. I do mostly cardmaking, so the Xyron is most useful.