The problem I've always had with the Rondinax is that they require constant agitation, otherwise part of the film is not in the developer. If you have a developer that wants limited agitation, you're out of luck.
For a `normal' type of tank that can be loaded in daylight, I recommend the Jobo 2400. I used these for several years before switching to SS tanks.
2xM3, Summicron 5cm collapsible, Super-Angulon 4/21mm, Tele-Elmarit 90mm (thin), Tele-Elmar 135mm