A nice basic free plugin. But requires expensive extras in order to really incorporate into a nice site. Somewhere around 10 or so extras that EACH cost 40$ makes for an expensive piece of kit. Something as basic as customizing a signup form with an extra field or 2 = 40$. Add to that a yearly renewal fee at 25% of origonal cost- EACH. Ouch. Sorry but much more affordable and effective options out there.