I have just started using it & am on & off about doing the peaks, so I'm not earning as many badges as I should be able to.
Some of the badges include free shipping $$ off purchases, % off purchases.
If you would like to check it out, you do need a Facebook account.
Referall code: https://www.sneakpeeq.com/r/MjM0NTg4
This is one of the items that is for sale today (June 11th)