The MagPi has published their review of the Analog Zero from issue 48. It’s an extremely positive review and really highlights how usable the board is. I really like it (I covered it in a preview a few months ago) as it makes using analog inputs so easy. You can read the review here and get hold of the Analog Zero from RasPiO, The Pi Hut or Pimoroni.
Alex Eames, the creator of Analog Zero, is currently running a Kickstarter for a GPIO Zero reference ruler.