I'd highly recommend this solution to people who want to amend Shopify's default rates with something more customizable for situations where you want to create additional rates for customers to choose from, say for pickups, or for local delivery, or special cases.
The filters are pretty powerful to narrow down the special rates to subsets of products, or for certain delivery areas, to tell Shopify when to show the rate.
The author of this app is quick to respond and really helpful.
I did have to go elsewhere for a solution because Parcelify lets you add special rates, and is very configurable, but it doesn't interact with live calculated rates. I wanted to create a filter that would select certain products and use UPS rates on just those products, while having tiered rates for the rest of my products. Parcelify wasn't designed to do this.
It appears to be great at providing rates for groups or individual products, providing rates for additional items when more than one is added to the order, filtering based on country, postal codes, SKU, product name, brand, even the street name for hyper-local rates, and more.
I'm still giving it 5 stars, because for what it is designed to do, it does do it well and the support is uncommonly good.
My one suggestion to the author is to provide a little more documentation of how it works and what it can and cannot do. It would aid people who are searching to customize rates. I really thought this might help me, and spend days trying to figure it out, to find out that it was the wrong tool for me.
Kind of the author to provide it for free.
Note to those that don't have live rates... Apparently to install a shipping app, there is a requirement imposed by Shopify that live rates must be enabled. Pay for your Shopify plan and contact their support and ask them to switch on the live rates for you. They will. Or you can pay an à la carte fee if you want to pay monthly to get live rates. Don't rate this app poorly because you were not aware of this. It will not cost you more to upgrade to the annual plan and then you have it!