With great regret, I have to state that at least two recent versions of pro2store are not working. This is due to issues with the checkout page!
The GRID AND FILTER I bought also refused to work on my site with pro2store, and support did not appear on this forum.
Be careful buying anything here and check the order page carefully after updating older versions of the pro 2 store.
I had to roll back all updates to version 1.4.8 to restore the checkout experience!