Guido S.wrote a review of Black Diamond ATC-Pilot Belay Device on March 31, 2018
Familiarity: I've used it several times
Considered that it is a single pitch belay device, it hasn’t the same multiple use that a tubular device has. It makes this job excellently as giving rope is quite eased, whereas the blocking system is semi-assisted, what gives more safety to belaying. I myself prefer this than the gri gri.