First off, let me say this little gadget is a lifesaver when you're on the move. The 2400mAh battery lasts through a full day of use, and the screen display is super handy for checking signal strength and data usage.
I took it on a road trip across the US, and it performed like a champ - streaming music in the car while my kids watched videos on their tablets. The 10-device limit meant no fighting over bandwidth with my family.
But here's the catch: setup isn't plug-and-play. Like others mentioned, you absolutely need to disable the SIM card's PIN and manually configure the APN settings. I spent 20 frustrating minutes figuring this out at a rest stop before it worked.
Also, it's picky about carriers. My friend's Canadian SIM card wouldn't work at all, so this is strictly for US networks as advertised. The 50m range is accurate, but walls will reduce this significantly.
Would I recommend it? Yes, but only if you're technically comfortable and traveling within the US. It's saved me from expensive hotel WiFi charges multiple times now.