Good board
For Teensy 3/LC Proto board, Arduino Shield, nRF24L01+
An excellent product. Sadly the documentation was limited to a build-it guide, which was very clear.
The developer's wiki had sufficient information to determine the pinouts and match them to the (almost) standard Uno layout.
The limited contact I had with the supplier to improve the documentation, suggested that communication on any issues would be good.
All in all, I'd buy another one if I needed Teensy to Uno conversion again.