Hi, I tried it, it was pretty fast, and the UI/UX is nice :)
Nice idea overall, I like it.
The top black bar asking you to pay at the end may however be somehow stressfull, especially when you see that a countdown has started, and you need to run to your credit card to not loose your page :p
The top black bar asking you to pay at the end may however be somehow stressfull, especially when you see that a countdown has started, and you need to run to your credit card to not loose your page :p