Smartish review for DPO Dynamic Product Options

I've used this app for about 2 years and love it. We use this app to dynamically build print-on-demand SKUs based on the customer inputs. We have tens of thousands of possible customization options so this app spares us the HUGE pain of creating all combinations in Shopify. Instead it just creates a temporary variant based on the customer's selection and then cleans up after itself when the order is completed. The developer is also quite responsive whenever we've asked for a fix or a way to make particular updates. He's even worked in some of our feature requests over time.