I was excited to get thes because I have a number of games that only need a small container (i.e. Trails and Trekking the Nat'l Parks, etc.). These were perfect. Each color fit nicely into the bins and they fit into the original box perfectly!
The minis fit in the smallest game boxes. They also allow you to get granular with separating tokens. I use more of these than any other BitBin.
I use the minis to store components in many of my games. They are much better than little zip-lock bags.
I love the design which keeps the card corners from being damaged. Also useful for other items when a low profile is needed in a game box.
The sampler set is a descent example of what BitsBins has to offer. I really appreciated the variety. It allowed me to see what size the different bins were, which will make it much easier to order in the future.