If your computing needs line up, it's a very serviceable approach.
I haven't added my iPad to the Tailnet yet but i reckon that it could become a very comfortable and productive device for me.
Its update policy can result in this sort of regressions in a middle of a release. One thing that's nicer thing about macOS is that a released version doesn't regress as much (even if they are buggier at release; but in that case you can just wait until a later point release to upgrade).