https://gethelium.com/static/images/sales/overlay.png
* Why are the labels _inside_ the input field? It's surprising when you can edit _some_ text in a well but not all of it.* Why is my email address under billing?
* Why is the CVC field on a different row?
* Email, name, and street address fields will contain long data. Neither my street address or email address will probably fit in there.
* Why is the year only two digits? Y2K led me to believe two-digit years means accidental ICBM lanches.
Also, I spent fifteen seconds wondering why I couldn't flip the switches underneath "Effortless for everyone" on https://gethelium.com/. I even tried dragging the switch nub left and right.
I hope this helps. This looks like a really useful service. I'd love to look at the integration documentation (if there is any).