Works fine. Comes with the USB power plug if your TV doesn’t have a port to power it. Also comes with multiple double sided tape pads. I stuck it to the back of a wall mounted TV such that it sticks above the top edge of the TV and the signal is fine. It would probably work better if I stretched the long coaxial cable and and stuck it to the window.
Does the amplifier come with it?
You bet it does. It is separate, so you can choose to use it or not.