Mobile hot spots

We've been using a Visible R2 as a hotspot for a couple of months now, and with the Party Plan we're only paying $25/mo. I have the R2 tethered to a Pepwave router that lets us connect all of our devices as needed without being restricted by Visible's one device limit. We've found the 5 Mbps hotspot speed limit to be adequate for streaming most of the time, and general surfing all of the time. We also have a grandfathered $20/mo unlimited AT&T plan that does not have the speed restriction. Both plans are unlimited with no throttling, although both plans are subject to speed reductions on congested towers only for the duration of the usually brief congestion.