The proprietary OpenWRT fork they run on these works great, no bugs that I've found. Feature rich.. allows you to really "own" your device, such as issuing changes to the internal 4G/5G modem settings. Has all DNS, VPN features, WiFi repeater (awesome feature, but I haven't used it). Build quality and accessories included are also top notch. This is my first ZBT device and despite it being costly (but on par or cheaper than other 5G cell routers) I don't regret the purchase and ZBT has a customer for life from me.

The router lacked solid-state memory. I purchased two modems, but only one was functional. It was bulky, heavy, and ultimately not fit for purpose. While the support team was very polite, they were unable to provide an effective solution. Alibaba promptly issued a refund. After receiving it, I decided—out of goodwill—to return the sample device, even though it was not required. However, when I reached out to the support team with this offer, I was met with an unexpectedly rude response.