Rodinal is one of my favorite developers. Rodinal works well with most B&W films and will yield uniformly developed negatives with a variety of different agitation techniques.
Continuous agitation works fine with Rodinal (with shortened developing times - - about 20% to 25% shorter than development with intermittent agitation).
Intermittent agitation also works fine with Rodinal. For example, I am currently developing Ilford Delta 100 in Rodinal diluted with 50 parts water to 1 part Rodinal for 11 minutes at 68 deg. F. I am developing in a small tank with 10 seconds of gentle agitation per minute. This means one agitation period per minute consisting of 4 or 5 gentle inversion cycles of the tank (twisting and rotating the tank while inverting).