Technically makes the filter a good impression, the framework is to match the size of a little bulkier than common filter sizes. Error can not be identified. The practical test is yet to come.
I prefer a star off because the supplied storage option looks just fine but is totally impractical.
A bulky box in leather look with snap closure - at every filter removal have to be careful that the push button does not scratch the filter. A simple velvety pouch with Velcro or the usual plastic box would have been much better.