Quick update on my HolidayPhone SIMs.

Both worked great once I got over an initial hurdle: My MiFi (Huawei E585) needed to be set for APN: websfr.

Frankly, I wish I didn't have to ask about this - not sure why HolidayPhone doesn't tell you up front that this is the proper setting. Maybe most devices auto-configure and mine is just old? In any event, it would have been nice for this to work when I got off the plane, not the next day after I submitted a support ticket and got a (fast) response.