My own Joyce has the 3" drive replaced by two
Teac 235F (720K)
That's not something I would do, if only because it means the machine can no
longer use any of its native disks. Hook up a 3.5" drive as a second
unit, sure. But not as the boot drive.
With 2 720K drives and the full complement of DRAM
(512K?), the 8512
is actually a pretty decent system for general CP/M work.
I'd rather have an Epson QX10 (my personal favourite CP/M machine).
But I think the Amstrad PCW was a very sensible product. Bundling in a
printer and word processing software meant it could be used out of the
box for what a lot of people wanted a computer for.
-tony