I’ve been using some since January, coming from SRAM brakes.
They are quite direct, powerful straight away, with less modulation than my previous brakes. They remind me of my old Saint brakes. I thought I liked that style, but it takes some relearning, and it’s completely blown the progress I was making with learning to manual.
On the trail they’re brilliant. I do notice some heat build up on big mountain descents (I’m talking Pila here), but better than the Sram.
Bleed is straightforward and consistent.
Parts are available, and they’re fully rebuildable.
Pads aren’t available from all brands, and they’re usually more expensive than ones for other brakes.
I am using 2mm thick 200mm diameter Magura rotors which have also been impressive.
There is some squealing when cold and wet, but soon goes after a couple of pulls. Nothing like Sram squeeling.