I don't know. $180 for a fancy shake and shoot loader seems a bit much for me. I know it's motorized, but it almost seems like MCS is slipping back into Rap4 territory again. A box mag is intended to be used in situations where suppression is wanted. If you can't reliably shoot a constant stream with it, then it defeats the purpose. Personally, I'd rather just use magazines.
I understand your issue with it, but really is the only retail option for people that can't run a DAM box rotor. I could see running this for Recball when I don't want to run my full kit, just grab this mag and and air source.