Tyler S.wrote a review of Beal Joker Unicore Dry Cover Climbing Rope - 9.1mm on July 31, 2018
Familiarity: I've used it several times
This was my first Beal rope, and I am pretty bummed about it's performance. I had heard good things about it for alpine use, and liked what I saw when the rope first came. It handles well, and seems like a sturdy line. It is a bit dynamic, but it was used on a lot of moderate routes and didn't need to catch tons of falls.
Bought about a year ago, my joker lasted two climbs (7 pitches) before suffering a core shot. It got stuck in a flake during a rappel, and when flicked out it was cut fairly deep. Warranty doesn't cover this of course, and it made me worried about how strong their sheath material actually is. Unicore looks like amazing tech, but I'll be sticking to ropes from brands that I trust a bit more. Mammut, Eldridge, and Black Diamond all make excellent products, none of which have failed me like this.