It was easy for my group because we could use our laptops rather than tablets as it would have been difficult with all devices being used together at one time! Having multiple people in front makes things easier - you can see what others are doing without having everyone staring over their shoulder trying not to be distracted by them writing something else instead!! I dislike that when i switch from another app like word document etc there's no simple way back into air chalking- this seems quite annoying sometimes but its only minor niggle really :) Good product if budget allows? The benefits include easeof sharing information which has created better transparency within team meetings/workshops (ie less emailing).