Bulky and fairly cold
My initial impressions after a few days ice climbing with them are not very favorable. Let's start with the good stuff: they seem very durable. The leather is high quality and the seams are well placed. Obviously only the test of time will tell, but I don't anticipate these gloves falling apart.
Downsides: they're VERY bulky. I cannot envision myself ever leading with them, as I can barely operate a carabiner. They're quite thick, so I got pumped gripping my tools and belaying with them. And, they're not too warm. My fingers were getting cold on a warm day (25 degrees) after standing around for an hour.
I have also worn the Black Diamond Renegades, which I could lead ice in: they were thinner and warmer than these. That said, they're surely less durable (no leather).