Reply to To Get an S4 or not to get an S4??

Hey everyone i had a few questions I would like answered before I pay 900 dollars Thank you in advance I love this community so much...
1. Because the EQ's are in the software are they as good quality with a analog mixer?
2. Are the EQ's complete infinite kills if i turn them all the way to the left does no sound come out or does some audio still bleed?
3. Because it is an all in one are there heat issues.
4. I am a two person setup and we are both investing in this we would like to know any thought to what would be good along side the s4 for a two person setup we already have a: kontrol x1, Akai