Its a good app that looks smart but it has some major flaws: 1) It counts Saturday and Sunday as a delivery day even if you have Saturday and Sunday as a non-working day. This means that if a customer places an order on Friday and you have a 3-day delivery window it states Monday as the delivery day when it should be Wednesday.
2) You can't change the placement of where the delivery estimate appears on the product page and it appears too close to the product body text. I believe further coding is required for this but I am not a coder. I have written to the developer twice on the above points and support is slow and not very helpful. I'm still waiting 3-days later for a response to my last email.

I like this app but she didnt let me set Delivery by date day to. I like to set a day with out counting function. All the rest is perfect

i've just tried the free version! it is ok but there are some bugs as it disapear from time to time from the store... i'm still trying it

It is a basic order delivery estimate app which says "delivered within X days" but if your item sells out and you allow backorders/preorders, this will not work.

Great potential since they said that they are working on a solution on this. However, I really do think that support can be improved.

Looking forward to your new features that will include that function.