but both were really awesome compared to what existed on other platforms back then. In particular, I liked their documentation. Those were great times for documentation (not just BASIC, also TOS, GEM etc from that time more than today's. Either there were more qualified tech writers per product, or the products were simpler ... or maybe just nostalgia.
I built a full CAD-CAM environment in GFA that lives on to this day as the core of a lathe / mill combo with integrated software. It was an incredibly productive environment, the whole thing clocked in at 50Kloc and a few thousand lines of assembly code to make it run very fast.
And probably PageSteam for the the desktop publishing app.
Not sure on that MIDI composer.