My only complaint about the AR Platform is the mental agony I suffer pulling RSO duty and watching all the non veteran noobs fumble their fancy new toys like a monkey trying HUMP a football...
For GOD's sake... if you've not been trained in the manual of arms on this rifle... Google it!
The design "can" be difficult to manipulate from the bench but knowing how to handle the features while standing will make it much easier to not look like a complete jackass when you come out to the range.
Duty day last month I pulled 2 newb AR shooter off there bench and made them watch a very proficient 12 year old girl handle her dads rifle.
It ain't tough... just takes training.