.........which is currently bugged. Just been in Blackreach for the ump-teenth time tying to trigger the dragon and no joy.
Just use 'Fus Ro' or 'Fus Ro Da' on the large glowing orb above the silent city.
I agree with the soul cairn point, it got tedious fast. Instead if adding harder more complex enemies they just added the same 'boneman' with 10x the health and damage. But they have done this throughout skyrim.
The dragon fight consisted of him raising weak undead and using the VL shout, so it wasn't that challenging.
Then finally the quest for Jiub, nice character idea from a previous game but an incredibly boring quest. I had to look the last page up as I just couldn't do another lap of the cairn.