LYNX Barbell review for Advanced Shipping Manager

We've been using this shipping app for over 4 years now and love the flexibility and ease of use it offers. The few times I needed support I got help immediately which is much appreciated. You can really lock down your rates, offer free shipping on certain items, specify box sizes so you don't bleed money, eliminate shipping methods based on product, etc. I'm impressed with the app and level of service I receive when needed.