I had the pedal (Afterneath) as well. It does what it does.. well, I guess. I just found it to take up space because it got old after a while. The FX Aid (series) is a much better general, effect module; and yes, a classic. I own the Pro (a screen and storage, but at the expense of quite a bit of space). If you use more than a few effects, make sure you keep notes. I also own a Z5000 and MFx. I guess the point of asking about Afterneath was more saying I would make sure its what you want before shelling out the money... that said, if FREE, then why not?!?
In terms of other modules I reccommend.. All (or most) of my racks are public -- generally speaking, I own and like (or at least am in experimentation with if new) with all of the modules in them. Of the top of my head... I did like adding a PPEXP1 to my Pams. Pams' can do a lot... but should it always? I would maybe look into an RND Step or another dedicated S&H module.