[apitman]

One tradeoff with MVNOs is you're generally lower priority on the network.

[shibapuppie]

The only time that's going to matter is during a high usage event, like sports or perhaps a mass casualty. At that point, the network is overloaded for the primary users anyway.

[hnrodey]

Priorities vary across MVNO’s. I’m not an expert but I think USM is on the better end of that priority spectrum.