Pretty good.
And that's high praise from me, considering I, well I wouldn't go so far as to say matured during the Zep years...but it was my era...I was one of the few hardcore who hung onto hard rock like a pacifier in a sea of insane canned-machine-music called di..d...I still can't say that vile word, ...anyway...Stairway to Heaven was perhaps my least favorite Zep song because a) too soft for me and b) it was the only Zep song the chicks ever wanted to hear and chicks being chicks it got played a lot!
Oh, and a good thing the fugly part didn't last too long!