I find it interesting that both these brands are not mentioned here
DeWalt 54v flexvolt at work, cordless grinder goes hard even when leant on, I know your metabo one would give up when you start leaning on it. We are slowly building up a full set, The battery vacuum cleaner has been a godsend
Full AEG set at home, and its been fucking awesome, grinder doesn't have as much grunt but that's to be expected