If u have realised any benefites from concerta thus far - the increased dose will show an improvement as in my case.
27mg is a pretty low dose, but u have to listen to your body and titrate up as u see fit, at 72 mg feel prety good and feel like an incerewase would be good, but u alwsays worry about what an increase means to side effects - i have noticed that the side egffects i experience are pretty minimal, but i do monitor EKG and blood pressure with each dose increase!!!
U are the one that has to decide if the benefit is worth it - good luck, but don't expect any med to fix all the negative effects of adhd!!!