I signed up for this app about a week ago. It was fairly easy to set up and when i ran into a couple of issues because i'm a bit challenged at times (HA!), i was able to get help quickly.
I gave it 4 stars because at this time, while it is up and running and looks great, i haven't received any direct sales from it.
We are really enjoying using Foursixty as a Shop Our Instagram means - more than anything the customer service has been fantastic, and the integration process with our website was seamless. Excited to continue to use it!