I like my g system. Alot of what people have said in this thread about them is incorrect. Also you have a fx loop in your triaxis but can also use the space between your pre and power amp as a always on loop for say a gate. The pre serial fx loops in rectos suck balls for the g system and most digital fx units as even at 100%mix you still get bleed. It's part of the parallel loop design, which is why I modded mine. I switch between all three channels on my recto and can even change channels on the second amp in my rig with the g sys. You can also insert multiple pre amps into the insert loops and switch between different amps. As always when using an fx loop you will get some signal degradation plus the ad/da in the digital units. Its important to calibrate your levels for correct headroom. If you're looking into a g system I highly suggest reading lairds white paper.