For me as e-drummer GA is a complete joke. Absolutely Plastic sound, very bad response/articulation with e-drums. I can use this sing only with the electronic kits and programmed grooves.
There is absolutely no sense in blaming the “quality” for the high cpu consumption.
For a really good e-drum feeling with great sounds there is no way around SD2 with the Music City SDX and the Vintage EZD
Alex