It's probably not worth it anymore as unlimited global data has been cancelled.
I used mine for 2 months in Ireland and 3 months between Spain and France (when unlimited global data existed). Under their current offerings though, I wouldn't bother. Unlock your phone and look into local sim cards. In Ireland for instance, you can get unlimited data and text (plus some minutes) on a pay-as-you go offer for €20-30 a month.
Beyond the pricing details of the plan, Verizon seriously needs to release a software update for this phone. It's obvious that very little global testing was done. The 3G antenna's awful. If the connection ever drops (which happens whenever you're in the shade, whether it's behind a building or beneath a cloud), a pop-up appears asking if you'd like to enable global roaming (turning on CDMA in addition to 3G). There's no way to disable this message unless you want global roaming to be permanently active (battery drain). If you hit ignore, you'll probably see it again 10 minutes later after you pocket your phone or enter a shop. Moreover, when the message appears, it wakes the screen UNTIL you acknowledge the message. So if you're at the cinéma and you've got your phone on silent, it's safe to presume your screen's been running for two hours.
When the phone does work, it's quite good. The hardware's brilliant, but the software's ****e. Curiously as well, the phone is MUCH faster in Europe. GSM's 3G connection is superieur to the 3G data connection offered in the major American cities I've been in. There's also a little H icon which replaces 3G when the connection's even faster. I'm not sure what it is precisely as I don't think it's 4G. That H guy, whatever it is, is well fast! Could easily do 300k sustained downloads. If someone would update the software, I'd say this phone's much better in Europe than it is in America.