I received a Test Drive hotspot. I followed the instructions for installing the SIM and charging (familiar process). When I turned it on it showed a welcome screen, then briefly cycled to a signal strength screen, before suddenly saying "no signal". It returned to the welcome screen and is now stuck there. Using the reset button has no effect, removing and reinserting the battery has no effect, relocating to a strong signal area has no effect. When I turn it on it goes to the welcome screen and no further. It is broadcasting a WIFI SSID but I can't log into it because I cannot get to the screen that presents the password.
Trying to speak to someone for support is an absolute joke. Abandoned on chat, 20 minute wait for a call back from an Indian dude that hasn't got a clue and puts me on hold for some other level of support that he has no idea how long it will take to pick up.
Just based on the support I do not think I will be switching to T-Moblle any time soon.
BTW the thing did connect long enough to trigger an email saying my trail period had started, but of course I have not been able to use it.