Purchased the Fusion4Home expecting the same results and to my surprise the unit boosted the 4G and Phone signal through the cabin.

All Carriers 3G/4G LTE-Likes:

And 4G is still sluggish

This unit replaced a 8 year old XBoost y545 that didn't support 4g

when you turn it on it looks like it improves signal but side by side comparison with another (and cheaper) unit showed zero improvement from this unit while the other unit allowed 3g to work in a previous 3g dead spot

When the 4G service starts to fail due to the weather or too many customers on one tower the 3G picks up the slack and gets me through just fine.

With 0 to 1 bar (mainly 2.5G with occasional 3G) if you're in the right location upstairs you could make a call, but with this in place and making sure I pointed the Yagi in the right direction I can obtain a solid 3G+ for phone calls and LTE for data

but the 4G is having some issues that I'll look into when I have more time tonight

Intermittent (very intermittent) 2g signal on one phone (Pixel 2) is what we got (older phones even poorer reception) - went to LTE 90% of the time (at slow speeds however), hitting Tmobile towers miles and miles away (not hitting any Sprint towers for phone #2 however at higher than 2g!!).

Purchased the Fusion4Home expecting the same results and to my surprise the unit boosted the 4G and Phone signal through the cabin.

All Carriers 3G/4G LTE-Likes:

And 4G is still sluggish

This unit replaced a 8 year old XBoost y545 that didn't support 4g

when you turn it on it looks like it improves signal but side by side comparison with another (and cheaper) unit showed zero improvement from this unit while the other unit allowed 3g to work in a previous 3g dead spot

When the 4G service starts to fail due to the weather or too many customers on one tower the 3G picks up the slack and gets me through just fine.

With 0 to 1 bar (mainly 2.5G with occasional 3G) if you're in the right location upstairs you could make a call, but with this in place and making sure I pointed the Yagi in the right direction I can obtain a solid 3G+ for phone calls and LTE for data

but the 4G is having some issues that I'll look into when I have more time tonight

Intermittent (very intermittent) 2g signal on one phone (Pixel 2) is what we got (older phones even poorer reception) - went to LTE 90% of the time (at slow speeds however), hitting Tmobile towers miles and miles away (not hitting any Sprint towers for phone #2 however at higher than 2g!!).