The biggest time-consuming parts of crafting the Nevermore:
Wood farming: an insane quantity of Elder Wood is required. Literally an entire forest. I farmed Orr on a daily basis for weeks on end and completing one crafting component only led to more. It was a little like climbing a mountain in Colorado; just when you thought you were reaching the summit, you discovered it was a false peak and there was a higher point to climb to.
Daily crafting components: certain legendary components require resources that can only be crafted once per day. You might have gathered everything you need and still be a week away from crafting the item simply due to the mandatory cooldown period.
Mastery points: the legendary crafting process requires mastery in all areas of the game, so I spent a significant amount of time leveling up my mastery ranking in Tyria and Heart of Thorns.
I found the entire process to very rewarding. It was difficult and complex enough that only a limited number of legendary weapons will be in the game. At the same time, it was not so difficult that you have to be an elite player to achieve it (translation: players like myself that play just for fun can achieve it).
Bonus: the skin unlocks. I can throw my Nevermore skin on any staff on any character. AWESOME!
Final thought: I originally started the Legendary crafting process with the idea of crafting a Bifrost. But now that I have my Nevermore, I really don't want the Bifrost. So I have a stack of dye that I think I will consume to increase my unlocked dyes.
