I am trialing the free version of this app. It works well and loads quickly. As the free version does not allow editing within the mini cart, I have relabeled the checkout button as "Edit Cart / Checkout." My only complaint so far is that the button style in the Quick Mini Cart has overridden the button style for my entire website. I received a professional and timely response from the app creator regarding this issue, who has made some wonderful efforts on my behalf, but as of yet the issue is still unresolved.
I used this app to help me do x. I really like how it does y. It would be nice if it did z better. I used this app to help me do x. I really like how it does y. It would be nice if it did z better.