I thought I would try Bodhi 4, so I installed Beta3 on an old laptop. It installed with no problems and runs well, and my only comment so far is that although PCManFM is installed there is no application launcher for it, so it does not appear in the menus. I got over this by creating a personal application launcher for it.
I'm not very keen on the default theme, but that's just me. It's no problem - when Bodhi 4 stable is released in a few weeks, I'll install the Forum theme. That's one of the great things about Bodhi, it's so customizable.
Many thanks Jeff and the other devs for creating the best distro ever!