I don't know if I'd use a commercial Caffenol developer. Part of the appeal for me is to vary the formula and application; the spirit of experimentation for the non-chemist.
I use Caffenol as a paper developer as discussed in this thread: http://www.apug.org/forums/forum37/3...affenol-c.html
I find it very effective in this regard, rendering lith-like prints. (though Tim Rudman tells me that Caffenol developing is not infectious, a key requirement in lith printing.)
The following print was developed between 3-5 minutes in traditional Caffenol (non-C) on Kentmere VC Glossy.
Here is the same shot printed on out-dated Kodak Polymax paper. I think the resulting swirls are a result of the extreme age of the paper. I like it, though.