I have this scanner.
From 35mm, I can easily make a good 8x10 and ok 11x14. I've done up to 12x18 but it was only passable. With 120, I've done excellent 11x14 but have not done anything larger.
It cannot scan 4x5. The light on hood isn't large enough to fully illuminate 4x5 and there is no holder for it for that size.
By the way.... there is no increase in image quality after 3200dpi. Going double that will give you larger size but that's about it.
It's an excellent tool to experiment with images before heading into the darkroom. I often do that to explore possibilities. See? Scanner can be a darkroom tool...