Just a followup to this thread about the new AT&T Unlimited* Plans. We are very glad we switched plans. We've been with AT&T since before they were that, starting back in 1993.
Just to compare, prior to the new Unlimited plan, we had 2 smart phones and a hotspot sharing 30GB of data, monthly.
Now, we have 2 smart phones, a hotspot, and a Mobley (OBD in-truck hotspot), with Unlimited* Data for all (*Subject to network management (aka, lower priority and possibly slower speed) at 22GB each device).
The best part, we are now spending about $10 less a month.
I typically use our RV Park wifi during the day while I work -- emailing and downloading and uploading files, connecting to various websites, etc. - But sometimes I do real-time screen-sharing conference calls, and the park wifi is not fast enough to maintain this. -- Recently, I tested it over a number of days. It appears the max download speed of the park is 3mbps! So I use my hotspot when doing the screen-sharing.
With the new AT&T Unlimited* plan, I decided to try a month using the hotspot for all my business needs. (We were stationary, so using a consistent connection.) We used 42GB for the Hotspot, 11GB for My Phone, 20GB for Tony's Phone, and .5GB for the Truck Hotspot (Mobley), for a total of 73.5GB! We did not experience any "Network Management" i.e., slow speeds after we hit the 22GB on the hotspot, but of course, this is a fairly rural part of Texas.
FYI, Verizon is offering "Unlimited" plans, but I understand they are throttling the hotspots and tethered access at 10GB, down to 3G speeds.