I recently sent a query to Shippo asking about their Shoppify app. I hadn't even purchased anything and I got a very fast response with the answer to my question from Shippo customer service. And then I even got further information that helped me understand the problem I was dealing with. The rep didn't have to do that and it was really helpful and appreciated! I will certainly remember the experience and Shippo will be on the top of m y list of vendors to use for the needs of my web development clients in the future!