I just used this kit for the first time. I was gluing some melamine sheets with Roo Glue (specially made for melamine) The set up time was 15 minutes, so I had a lot of surface area to cover in short order. This glue kit, using the glue roller did a nice job. It enabled me to cover a lot of surface area quickly. The amount of glue that is released is based on how much you squeeze the container. You can easily see the flow, so guesstimating is pretty easy.