Let me start by saying this 4G LTE USB modem looks promising on paper – compact design, 10-device connectivity, and decent battery life. But after testing it for two weeks during my business trips, I've got some mixed feelings.

The good first: When it works, the speed is impressive. I clocked around 45Mbps download speeds in downtown areas (though far from the advertised 300Mbps). The pocket-sized design is perfect for travelers – slips easily into any bag. The 3200mAh battery lasted me about 6 hours of continuous use.

Now the frustrating part: Setting this up was a nightmare. Like many reviewers mentioned, APN configuration is unnecessarily complicated. My T-Mobile SIM worked after multiple attempts (and several device restarts), but my friend's Google Fi SIM never connected despite trying every possible setting combination.

The signal strength is inconsistent at best. While it worked fine in urban areas, during my road trip through rural Pennsylvania, it frequently dropped connections or showed 'No Service' despite my phone having decent reception.

What really bothers me is the locked functionality in certain regions despite being advertised as 'unlocked'. A colleague traveling to South America confirmed it simply wouldn't work there.

Final verdict? If you're tech-savvy and primarily using T-Mobile in urban areas, this might work as a backup internet solution. For everyone else – especially international travelers – I'd suggest looking at more reliable options despite the attractive price point.