DrPauluswrote a review of Black Diamond ATC Guide on March 4, 2015
Familiarity: I've used it several times
This belay device has received some great reviews, and it is not a bad device, but i feel other devices on the market like the Petzl Reverso is better. I feel the ATC Guide is not very smooth at feeding rope, it feels like there is more drag on the rope than similar devices. My device is pretty new and probably not broken in yet, but still, the Reverso 4 is much much smoother out of the box. Also the ATC-G is heavier than many other devices, and it is not any cheaper, and I dont feel it outperforms the Reverso in any way. If you absolutely want a BD ATC, then this one is a good device, but you can get better. I would recommend looking at other devices, and the Reverso4 would be my top pick for a belay device with guide mode at the moment.