A travel router does one simple but valuable thing: it turns a single hotel or airport Wi-Fi login into your own private network. I log in once on the router, and every device I'm carrying connects to it automatically — no repeated captive portals, no per-device login limits, and no sharing a network in the clear with everyone else in the building. It also runs a built-in VPN, encrypting everything at the router level rather than device by device.
I chose the Beryl 7 over GL.iNet's older models mainly because of where I actually use it: busy hotels and airports, where dozens of other guests are fighting for the same wireless airspace. Wi-Fi 6 and 7 routers handle that congestion far better than Wi-Fi 5 — they can talk to multiple devices at once instead of queuing them, they route around interference from other people's routers on the fly, and they let a phone's radio sleep more between updates, a nice side benefit for battery life. The Beryl 7's WireGuard VPN speed is also well ahead of GL.iNet's cheaper Opal and Slate AX models, and for only a small premium over the Slate AX, that made it the easy choice for two of us traveling with phones that need to stay both fast and private.