Marton Mills is definitely not inferior - just a different hand and a slightly more prominent selvedge. I like working with their tartan, and they have many tartans that are interesting and different from those available from other mills. Marton Mills tartan is also a really attractive alternative for those who are looking for a less costly tartan. I commonly suggest their tartan as an alternative for someone who wants a custom made kilt (where the labor is a fixed cost) but who want to economize on tartan. And I love the unique tartans that they offer - their Scottish American tartan is wonderful, for example, especially pleated to the white stripe. And it is a unique offering.