Mary A.wrote a review of Edelrid Mega Jul Belay Kit on November 15, 2015
Familiarity: I've used it several times
I've only used this top roping and sport climbing so I can't say anything about its ability to belay followers, but it's very smooth when feeding out ropes under 10 mm. Anything above 10 and there's a noticeable amount of friction and it just takes a little more effort to move the rope through. The locking feature works great and rappelling in the 'reversed' orientation is similar to any tube-style belay device. Overall, the build appears to be very solid and seems like it will last a long time and withstand a lot of punishment.
As far as the carabiner goes, its definitely not the lightest available, but the gate and screw lock are both smooth and the anti-cross loading bar is nice & tight and works like its supposed to.