PH MultiCarrier Shipping Label

We have been using this app now for several days without any success. We are based in Scandinavia. Rates are not showing correct. Dual or confusing answers from support sometimes regarding setup and configuration. Tried for hours to connect a Thermal Printer without success thru this app. I like the idea for the app to arrange and handle freight labels thru one point but it has not worked out so far. Support seems quite fast in reply. We give this some more days. If everything not working out it is no point for us to have this app.