[Elecraft] K2 DSP Noise Reduction

[PE1E]

 I am new to K2.
On their website, Elecraft offers an audio sample of the K2 DSP noise
reduction ( the CW and the phone sample ).
I hardly can believe this diffference, it sound so great.

Who uses this K2 ( KDSP2 ) noise reduction ?
Does it really work that unbelievably well as the sample on the K2 page
suggests ?
If so, I buy definitely.
Has someone please some more .wav of .mp3 files for me with and without this
DSP NR ?

I am very eager to learn on this feature.
Thanks for any comment.

Peter, PE1E