I've had a 2x3 Pressman, sold it and standardized on 2x3 Graphics. The 2x3 Pressman is a nice little camera, in some ways nicer than the comparable Graphics (Century, 2x3 Crown), but apparently held down by small and hard to find lens boards and a spring back that makes using commonly available roll holders impossible.
Ian didn't explain how he uses Graflex backs, but other users have reported swapping their 2x3 Pressmans' spring backs for 2x3 Graflex-made Graflok backs. And that solves the roll holder problem. Jim10219 mentioned Adapt-A-Roll 620 roll holders. These are insertion types. I use them with my 2x3 Graphics, prefer them to Graflex roll holders. Another solution to the roll holder problem. Busch made an insertion type roll holder that uses 120 film for the 2x3 Pressman. Completely unfindable.
OP, your Pressman has a Kalart rangefinder that can be adjusted -- painfully, and not in the field -- for a range of focal lengths. Mine had a Hugo Meyer RF that was good for only one focal length, Ian may have been thinking of that one.
OP, tastes differ. I like system cameras, i.e., cameras that can be used relatively easily with more than one focal length. This is why I got my Graphics. But and however, I use a normal lens with them more than any other. If you want to shoot 2x3 with a camera that offers modest movements -- more than the equivalent Graphic, but still modest -- and can use only a normal lens, go for it. If you want a 2x3 system camera with a rangefinder that's good with only one focal length, get a Graphic. If you want a 2x3 system camera with useful movements and an RF that's good for multiple focal lengths get a Horseman.