I'm one who actually likes the notion of augmented sound provided by BMW's Active Sound. I agree with ddk632 that the idea does take some getting used to, but as engine sound is one of the appealing features of high end performance cars, I like the fact that BMW enhances that feature on certain cars like the i8. However, I do wish it were a switchable feature that one could turn it off if it's not desired.
BTW, when a women I dated some years ago had a certain physical feature of hers augmented, it took me about 2 seconds to get comfortable with that.