Just my 2p, but.....
I had a G-System Limited for 10 days before I sent it back, because despite the reworked analog section to my ears it did still change thin the tone. I have an LSC 212 10/50/100. I had no noise problems but for me it changed the tone too much. Others will disagree but that was my experience.
I followed the whitepapers that have been published on setting the device up and still found this. I have now switched to a floor based system using individual pedals and a GigRig Pro-14 at the heart as a switching system.
You'll have to try it for yourself to see how you get on, but I have no audible degradation in tone with my new setup. Not sure where you are based but if it is in Europe, Thomann.de were excellent about me returning the unit, so there was very little risk.
As I say your ears may not care when you get it, and I am by no means a tone snob, I was gutted to be sending it back. But the change was just too noticeable for me.
D