I was about to post the same thing. I have my Cradlepoint set to reboot every day at 4:00AM. Figured it couldn't hurt. For a while it seemed to need an additional reboot once in a while during the day. Service would slow to a crawl, and sometimes a reboot seemed to help it. I have seen that setting about force LTE while playing around with mine, but never really saw the need to enact it. It always looked like it was using LTE, just local congestion probably clogging things up.
On that note, I was getting tired of abysmal speeds during peak times during the day on my OTR T-Mobile plan I was still using. I was looking for something that uses Verizon towers, since I have one much closer to me than the T-Mobile or AT&T ones apparently. Testing speeds on my Verizon phone always yielded much better than either of those two.
I saw on one of those sites listed here previously an outfit called WiFi Mate that touted a plan using Verizon towers. I thought I would give them a try. I ordered a SIM from them, and as I sort of suspected, it wasn't a Verizon one, but rather a Visible SIM. It came in just a plain envelope with a printed page with one or two sentences about changing the APN for use with Visible. I got it to work after playing with the settings, and got pretty decent speeds. Then after a week it abruptly stopped working. Fortunately I hadn't cancelled OTR yet. I emailed them about the problem, since that seemed to be the only way to contact them. I didn't hear back until the next day. Strangely, all the communications from them seemed to occur in the middle of the night, which makes me wonder where they are really located. Long story short, I never got their service working again, even after they said they would send another SIM but never did. So a warning from me to not consider using them based on my experience.
After that debacle, I was doing some research and came across a mention of using another MVNO, similar to Visible, that uses Verizon towers. This one is called Page Plus, and they have a plan including unlimited data for 50 bucks a month. You just have to go through the activation process yourself, which is no big deal. Like Visible, the latency or ping times are kind of high in the 100ms range. If you are not big into gaming, or don't need VOIP, it might be a viable alternative, especially if Verizon has better service in your area.