Now 2 months in, so far no issues at all. Still paying for the coveted $180 30GB plan, afraid to let that go but the new Visible hot spot is as good as anything I've used outside of a cable connection.
Maybe in a couple months I'll cancel the $180 plan, then I'll be totally dependent on Visible, no going back.
But if Visible maintains the current performance, I'll be saving $120 a month.