How good is the buil-in call recording?

[DavidRF]

Hi there,
I ordered a Redmi 1S and I'm waiting for the shipment. I'm wondering how good is the built-in call recording function. Many third party call recorders on Android work very poorly, even on rooted devices. Is it a real 2-way call recorder with good audio quality? Thanks a lot!

 

[franezunic7]

there is 2 microphones for noise canceling and recording quality is very good

 

[sophia]

It is pretty good actually, before this I was using the call recorder (by skvalex) but this built in from miui is much better by far.