It rounds the CDs and softens the high frequency fatigue?
And throws in the tiniest amount of tape hiss - enough to get sentimetal about analogue?
I can't tell if this is a serious question, or one written tongue in check, but I'll answer honestly.
In my opinion, analog cassette recordings do round out the CD sound and slightly soften the high frequency fatigue. I like the results.
With my Yamaha deck, and using Dolby C encoding and TDK SA tape, there was VERY little tape hiss. In fact, I'd say nothing more than one can hear on almost any above average quality CD made from original analog source tape.