I was contemplating which wireless charger to commit to for my S7 Edge (Insignia, Samsung, Belkin). At a price point stand, the Insignia cannot be beat at over half less the price of either the Samsung and Belkin. I read reviews on all 3 prior to deciding what to purchase. The sale price of the Insignia is what made me decide to buy it. Out of the box it worked without a hiccup. I was told by a BB employee that it isn't a fast charger. I really didn't care for the fast charge feature since it will be used as an overnight charger.
If you can get this at the discounted price as shown on the BB website as I write this, GO FOR IT! even though it is not a fast charger, my S7 Edge was charged from 30% to 45% in about 30 minutes. Like I said, I am using this for an overnight charger and that is more than enough time for a full charge as I count Zs at night.