I used (and still occasionally continue to use) Ardour on Linux using ffado linked up to a Focusrite Saffire Pro 10 from about 2010 on for mixing, mastering, and demo recording. It was great for many years. Unfortunately, I feel as if development on much open source audio software hit a wall right around then, which causes compatibility issues with newer hardware, thus less flexibility and production nightmares. At this point, it's not really feasible for use on large-scale projects anymore, at least not with newer hardware.
I used (and still occasionally continue to use) Ardour on Linux using ffado linked up to a Focusrite Saffire Pro 10 from about 2010 on for mixing, mastering, and demo recording. It was great for many years. Unfortunately, I feel as if development on much open source audio software hit a wall right around then, which causes compatibility issues with newer hardware, thus less flexibility and production nightmares. At this point, it's not really feasible for use on large-scale projects anymore, at least not with newer hardware.