My Made in America eCommerce site utilizes Drop-Shipping merchants from around the country. Almost every one has a unique Shipping cost algorithm. It was driving me bonkers to try to make this work. I had been told and had read about Advanced Shipping Manager a couple of years ago, but wasn’t ready to make the investment in a monthly superscription service, but have now taken the leap. It’s absolutely worth the fee just for the peace of mind, let alone what I am sure will be increased sales because I’ll be able to now dive into adding more and more products. I was slow-walking adding products because I knew that one day I’d have to redo all of the shipping. Now I have no bottlenecks to building my business. I am about to go live with the app, now having uploaded the new shipping parameters (for each merchant) and can’t wait. In my onboarding process with ASM, the customer service has been stellar. They are extremely prompt in answering questions and have been great about scheduling calls with me (with a live human being!) to get me going. I highly recommend Advanced Shipping Manager and WISH I had signed up two years ago. I’ll review again in a couple of months after being live.