I just got my first samples of both RPX100 and RPX400 (10 each) and will test them the next few weeks with Rodinal and Caffenol-C-M as developers.
I really hope, they're a replacement for APX... otherwise, I have to buy as much of the old APX as I can get and get a new freezer

The 120 will be available in late december if everything goes as planned.