NETGEAR 4G LTE Broadband Modem (LM1200) – Use LTE as a Primary Internet Connection or Failover Solution for Always-On WiFi | Certified with AT&T, T-Mobile & Verizon

Works very well and delivers a credible backup method at a low cost. Recommended.
We tried to switch from Spectrum ($75 a month) to T-Mobile’s 5G WiFi a while back to save some money, which was $40 a month. In short, I could never shut down Spectrum because the 5G WiFi is constantly losing contact with the cellular towers, so we’d have to reboot it about once a day. It’s on the top floor of the house, so someone had to constantly go up and down the stairs to reset it. Finally gave up. Negotiated a new price of $30 for Spectrum, but we still need a back up because every once in a while Spectrum goes out. We live in a semi-rural area where storms and such can cause problems. So I explored this thing…I bought the LM1200 version about a month ago, and ordered another cellphone “line” from T-Mobile, which costs us $15 a month. They sent me the SIM, which I first plugged into my phone to make sure it was working, then plugged it into this thing and turned it on. Very easy setup. Connected it to a WiFi router I had, and magic! It all works as intended.Of course, it is running at 4G LTE speed, to the device. When I connect various PCs and Phones to it from throughout our house through the WiFi router, I’m seeing speeds of around 18 Gig. That is, until we hit our data limit with T-Mobile. Then T-Mobile does not throttle our data, but they do deprioritize it. So when local cellular traffic is heavy, Our WiFi can slow down to 1 GB or less, which is slow, but better than being disconnected when Spectrum goes off line. All critical things such as our security system, etc. remain on line, and internet access via our PC is still functional but can take few seconds to load.The quality seems good. I did add external antennas that are supposed to help improve the 4G LTE signal, which cost about $10 and needed small adapters, but it was not apparent to me they materially helped with the signal strength, but maybe.Overall, very pleased. Works as expected and as a back up system, after the upfront costs, saves us about $25 a month.Highly recommended.Update: It’s been 3 months since I wrote the above review. At this point, I’d give it 5.5 stars. This thing works great. We have only *had* to use it once when Spectrum was down for a few hours, but about once every 3 weeks I log into it just to see if it is working, and so far, every time it has been and works great. Again, not as fast as Spectrum, but for $15 a month, in a crunch it is great.

I recommend using it with an outdoor antenna if possible but it is reliable and gives me over 200MB/sec speed.