I've shot a lot of it in 120 format. I develop it in either HC 110 or Rodinal depending on the subject matter. To make my life easier I rate it at 400 and develop as per data sheet. So far the results have been very good. One thing I do recommend however is to get an ExpoDisk and make sure your meter is zeroed as per their directions. This way you will always be dealing with a standard and if any adjustments have to be made in your developing due to water etc. it will stay consistant. For N + and N- I use the usual % increase and decrease in development times.
If you like it, buy lots of it because I'm not to confident Agfa will stick with the film market for very much longer.