This unit gives a much better signal improvement with Sprint compared to Verizon or ATT.

However, The unit is not strong enough to send signal to the 2nd floor of my house even though it is "designed" for 5000sqft space

The replacement poer unit died a few months later, and I replaced it

Great unit

All the lights are green, and not connections have been changed or the antenna reoriented,so it appears that the unit is just dead except for the status lights

This unit boosts my signal just fine

The unit is easy to connect, but installation can be tricky depending on where you are installing and how you may need to orient the antenna(s)