Easy to replace and as was my second one this year (my mistake, not product quality issue), it only took me about 45 mins to remove and replace this on. Shipping was very quick and packaged well.
So, I reviewed one of these last month and in the review I stated incorrectly that comes filled with gear lube. Well, I didn't check it myself relying on my helper who said he did. But he was referencing the old one, not the new one. Costly mistake on my part.
Moral of the story, don't forget to order the gear lube.