I liked the smell, lol. Yeah it smelled but it didnt bother me.
A couple of things to add since i did this just the other day:
One, the allen wrench size i used to get the bolt off is 3/16ths just for anyone wondering.
Also, looking at the owners manual it never actually says to change the oil(though i do recommend it, cause why not, its gotta be better) but my owners manual just says to check the s/c oil and top it off every 30,000 miles.
For mine, idk if it was ever changed, and i changed it around 67,5XX and it was completely black, which im sure is no good considering 1 it is clear originally and 2 when i opened it up i couldnt see any oil and it should be filled up to the bolts. Either way, feels much smoother now that i changed it. But yes, be prepared for the smell, though i dont think its all that bad.