I found the crux (upper finger crack) really tough to lead through. It takes pro well, but stopping to place it saps all your strength. The crack is slightly rounded over so is a bit tough to lay back, and the crack is off-finger for me, so is hard to get good finger locks. Quite a few hangs.
In a more recent attempt, I still had one hang, but I found some better feet placement. I'll get it next time!
The lower section a bit tricky too, I feel off-balance through it, and the pro, while adequate, isn't stellar.