Robert McFarlandwrote a review of Petzl Grigri 2 Belay Device on January 31, 2014
Familiarity: I've put it through the wringer
The GriGri is phenomenal belay device. It is reliable, easy to set up, and very safe. The new design is less bulky and works much better on the thin sport ropes that are coming out like weeds. The device is pricey, but it is totally worth it for the avid climber. It makes supporting your hand dog partner a breeze and can easily be used from an anchor or redirected for lowering.
The only thing I don't like about the GriGri is how many people you see using them wrong. It is not acceptable to leave your thumb pressing down on the cam while your leader is climbing! If you purchase this device, please take the time to learn to use it right. Petzl has great videos available to help you learn. No matter how safe your belay device is you are putting your climber in danger if you use it wrong.