I grabbed the new CXS 12 this week to replacement brushed Bosch GSR12. The fit, finish, 12V battery (which works on Sysrock), and expandability with attachments are fantastic and is what drew me to this drill/driver. The balance is amazing!
However, I'm leaning towards returning it. The sound from this unit is not just loud, but generally just unpleasant (much like a hairdryer or Dyson vacuum). This is any time the drill is set to speed level 7+ or on drill mode - under 7, it's quite pleasant. I know this was a concern from the community soon after it was announced, but I didn't expect a small drill/driver to sound this way.
I put together the following video (very positive, minus the sound) and am currently contemplating returning it. I could see myself wanting to use this inside cabinet carcasses or around the house for general DIY work.