First, these are great little HDMI transmitters. They automatically pair and the signal is great. For me, they solved a difficult installation problem which would have required pulling up the sub floor and drilling through joists to run coax.
Now some minor criticisms:
They are a bit bulky, not bad, but hard to hide for a clean look. Also, they use a bulky transformer power supply that takes up a lot of outlet real estate. The chords are also quite short. In these days of USB power, you would think that they could have designed the receiver to have the option to use a local power supply, or at least have a longer chord on the supply that they give you.
Just a couple of minor issues keep this from receiving 5 stars.