Well, it is one of my older (made) lenses (not oldest in my possession). I don't use it much as I have several macro lenses. I'd say it is the one I use the least, by far. Yet, I saw it there all lonely and figure why not take it out for a trip to the botanical gardens. Didn't even remember how good it was.
PS. Still like the Sigma 150, Tammy 90 and Nikon 55/3.5 better though but that's just me. I like all my lenses, just not equally.