Not worth 350 bucks but a nice camera.
3x4 is a nice format. You still have to develop processes for getting prints out of it.
I have a Series B 3x4 and it is a joy to carry and use. It's also one of the cameras Weston used.

I have a 2.25x3.25 roll film back for it but it hardly ever gets used.

3x4 Graflex film holders are not that hard to find.

tim in san jose