I wish we could have used this app but unfortunately the current Shopify plan that we are on does not allow us to use this app. Shopify requires us to upgrade to the highest plan or pay $20 per month to get access to it. Unfortunately as a smaller company we didn't see this viable, so will be looking for another app alternative. From what I have read, the Parcelify app does sound very appealing. It would be great if Shopify / Parcelify could offer a free trial before signing up to the monthly fee.
B Army Store
This app is great for merchants in the UK, we have been able to separate Highlands and Islands into their own shipping rates. Not the easiest app to use if you are not familiar with regex, but the price is definitely right.