My biggest problem with Cell is that I generally can't use all those utilities available for usual primitive numbers. My concern is directly connected to Improving usability of having many nearly-identical methods - #10 by Vorpal , as it is a general pattern in Rust - when something is not ergonomic, we will just manually add methods to make something easier. And sometimes something gets missed, like Cell.
Thus, language support for Cell would help Cell and I would be glad about it.