Xapo and Bit-x are the best at the moment for instant exchange at ATMs
But you can check also E-Coin which is very powerful these days you may check the limits too.
Personally i do not own any of these but from reviews here in forum you can check the difference between each other.
Xapo looks quite popular one. Their support also looks quite responsive. So for I don't have any issue using their online wallet and couple of times I sent message for some queries but they responded quite fast. They looks much better as of now.
XAPO is a good options because mostly I like their support if you're in a need. After getting card most likely some time we need to get in contact with support for some reasons so I always give a preference for good support oriented service provider. Xapo support team is quite good in resolving issues.