I used phoenix a month or so ago and it went perfectly. I'm wondering though, now that the US NSU has this feature perhaps it might be worth changing my product code from Euro 1 to US. Anyone have the US N80 code? I'll have a search later...
As for Gizmo, it works ok but I've found that of the 5 services I've tried during evening hours EST, Gizmo's quality was the worst. Still usable though.