The more I use Glue Dots, the more I appreciate them. I use the mini size. If I need to adhere something larger than a mini can hold well, I just use two or three. That seems more convenient to me, than storing separate boxes in multiple sizes.
Glue Dots hold very well. I was frustrated at first, because I am so used to adhesives that are repositionable for a time, but once I learned how to use these, I find that I like them a lot. I use them for adhering buttons, and other embellishments that have more mass than paper or cardstock. They seem to work best on smooth surfaces, rather than fuzzy ones, but they also can be stacked, and they kind of mold themselves to fit into curves and valleys.