Stamped Reviews & Loyalty

I'm using the free version, which was easy to install. I was immediately able to send out an email to customers who had purchased products from my site. When I sent an email to Stamped.io inquiring about changing the placement of reviews on my site, they responded within 8 minutes and had fixed my issue. I had another question about including rating stars on all my product pages. They took care of that very quickly as well. Great service so far!