I've been running our affiliate tracking on Epoch so far, and now think of moving on, either to NATS or MPA3.

I've asked NATS for more info, but did not get a reply. I guess they're not interested in doing business. So might MPA3 be a better choice? Their website does not inspire me much either..right in the first sentence of their index page there is a grammar error. If they're that careless I wonder how good their software can be.