Munchyhub review for Parcel2Go Shipping

The app seems fairly good, nice integration directly into the Shopify dashboard, etc. 5-stars for that. Unfortunately, the label prices are fairly high, same or even higher than my own business accounts with the carriers directly (Royal Mail and DPD - in the UK). I guess it's all their fees added on top. To what good a nice app if it's not practical or beneficial? Maybe I'm wrong and I'm missing something. But looking forward to some label rates improvement over time. And I hope a direct carrier Business Account integration will be made available soon as well.