wilson electronics 4G-X RV cellular signal booster

I've had one for about 3 years. I use it with both Verizon and AT&T hotspots and phones. My experience has been mixed:

In metropolitan areas, it usually increases signal strength but has minimal to no impact on data speed - and in many cases it has REDUCED speed. I suspect this is due to network congestion and the MIMO operation of modern hotspots.

In rural/remote areas, I have seen some good improvement in both signal and speed. It boosted a practically unusable signal to an acceptable level. As the carriers increase coverage, these situations are far less frequent today than several years ago.

If you're in a place with no signal at all, it won't help.

All in all, I would get one again since I need the connectivity for business. It's definitely nice to have on the few occasions when I needed it.

I bought one at the beginning our our three month trip. I would absolutely buy it again.

I have an ATT based WiFi puck and two Verizon iPhone 8’s.

To answer your question, I can give you a firm maybe.
There are many factors besides signal strength. Many “Unlimited” plans aren’t really unlimited; they will throttle you at certain data levels or cell tower traffic so strength isn’t always the challenge. Where I’m at now, I was seeing 15-20 mbs data rates then it slowed down until evening. It happened almost daily.

So I bought the OTR.com unlimited ATT puck. No throttling or caps or contract, $60/mo.

Back to the Weboost. It ALWAYS has improved data speed so far even when I have four bars. Where it REALLY shines is when you have a poor, weak slow connection.
I have several times had speeds so slow Facebook wouldn’t load. Setup the Weboost and get 5-10 MBs or better. Fast enough for streaming HD.
Totally repeatable. Plug it in and your good, unplug it and it’s .5 MBs.

I would totally buy again.