I use a Jobo for film and prints and love it. In only a couple of square
feet of counter space I can make up to 20x24's. I keep the chemicals at 75
degrees so no problems with developer precipitating out. I also use
developer controls (ie sodium dichromate) for contrast control rather than
sensitizer controls and with the Jobo its so easy: just pop in a different
developer for different contrast, a technique which would be much more
difficult with trays (ie use developer, pour out, pour in new, etc etc) And
the drums clean very easily.