Originally posted by clickclick have you thought about D-76 with the Arista EDU?
I've used D-76 and like it a lot. It's one of those developers which will never lead anybody really wrong - it may not give the BEST results all the time with all films, but it can always be relied on to give GOOD results. The problem is that my work responsibilities (being on call means I might have to drop everything) mean I sometimes don't finish a film & can't develop for weeks at a stretch, and I started to run into the issue of stale chemistry. Buying the small packs is hideously uneconomical on a pack for pack basis and buying the large one introduces the staleness issue; I can't use it fast enough!
The other problem is bringing the chemistry to the right temperature - I find working with Ilford syrups and Caffenol easier because I can pour out a HUGE bucket of water to 20 degrees celsius and then mix up developer and fixer on the spot; adding the small amount of concentrate doesn't change the temperature noticeably. My basement can run hot in summer, near freezing in winter, and I've sometimes spent more time and effort on getting the temperatures right than I have actually developing the film. I have considered buying a very cheap fish tank and a temperature regulator to do that job!! Set it running as soon as I get home; go down and start developing once the kids are in bed...
Overall, Caffenol has the advantage that the ingredients keep essentially forever and are dirt cheap (the vitamin C powder bottle was not, but the amount used per roll is very small), and can be made up on a per-use basis without staleness concerns.
Being in Canada means that I have to choose my US purchases carefully.