When the 4060 was introduced, I spent some time listening to it. This has been years, mind you, but I remember certain impressions I had at the time. I felt that the sound was a bit "grainy", that the noise floor was a bit high, and that it was not a flattering timbre overall. However, It seemed to me that for certain sources, it would probably shine. All-mahogany acoustic guitars come to mind... the added grain/brightness might add something nice. Certain voices would probably also sound good on this mic.
Since I worked for a competitor at the time, I also observed that they couldn't seem to give those things away. There were numerous promos, price drops, etc. in order to move through them.