The climb seems longer that it really is, it’s quite technical for about 1/3, very technical, rocky and rooty in some places, hard to keep momentum, and in general a bit of a drag.
I like the descent though, the first section (of the xc loop, not the black) is like a channel cut into the ground, quite fast & flowing, banked corners. There’s a couple of short climbs after that but nothing bad, and I really enjoy it after that, although it is maybe over a bit fast after that climb.