After using the GL-X750V2 as a failover for my home fiber connection, I can confidently say it's a solid performer. The automatic switch to 4G when my main ISP goes down keeps my security cameras online—no more worrying about missed cloud uploads during outages. Speeds hover around 55Mbps down, which is plenty for backup purposes.

The setup? Dead simple. Pop in a SIM (micro-sized, so adapters beware!), follow the prompts, and you're golden. I used a Google Fi SIM without hiccups, though the reboot time feels like waiting for dial-up—bring coffee.

Carrier compatibility is its Achilles' heel. T-Mobile/Mint Mobile users rejoice—it works flawlessly. AT&T customers? Brace for IMEI headaches and store employees who'll look at you like you're hacking the Pentagon when you ask for a SIM. Verizon/Sprint refugees: just walk away.

The OpenWRT interface is clean and feature-packed (SMS forwarding! VPN galore!), though casual users might never touch it. Pro tip: skip the glitchy app—the web UI does everything better.

Firmware updates are Russian roulette—some units upgrade fine, others turn into expensive paperweights. Mine came with v3.104 (the 'forever stuck' version), so check your serial numbers carefully.

For RVers or rural users needing reliable LTE-to-WiFi with proper antennas (unlike those USB dongle abominations), this punches above its price tag—just marry it to T-Mobile first.