I hate them. I hosted a Nature Direct party because I love their air woosher thing and it was the host special. I live with my mum and sister and just invited my bestie around as I didn't want anyone to feel pressured. She said it would take 45 minutes but it took 2 hours :/. Waaaay too much time dissing what's on the market rather than selling their product.
I'm not about to use a babysitting credit to go to someone else's party.