Just came back from a 4 week trip to Europe.

We were able to use our Arrival + card with a PIN(used it in local WalMart prior to the trip) everywhere without issues.

Worked in Trenitalia's unmanned booths(lines in manned booths Roma Termini were so long) fine; you just have to keep refusing "help" from gypsies !

It worked fine in SNCF & in Paris Metro station booths also(it would ask for the PIN and would ask you to enter it discreetly).

Most restaurants/shops it would spit out the receipt to sign; some shops like Carrefour and other Grocery stores it would just print the receipt and we did not even have to sign(maybe there is a Euro limit ??) or enter a PIN.

Also Trenitalia and SNCF coded fine as travel expenses for paying them with Reward points !