Ryoji Takahashi not only updated his excellent MPrintDriver for macOS, he also generously changed the license from shareware to freeware (see README.TXT).
It officially supports virtually the entire line-up:
so the relatively rare MW-170 and recently announced MW-270 should likely work as well.
The MW-260 is the only model currently offered for sale by Brother in the U.S. (though it is listed as discontinued on their Japanese website). It is also the first model to use the larger A6 paper (C211S), which is apparently not in stock.
New and used units (as well as the required paper cassettes) can generally be found on auction sites, however, and are well worth the investment, especially now that the macOS driver has been updated.
Thank you, Ryoji!
/mac | May 25, 2020