Lockheed Martin Imax row G too close?

Hello, I just got tickets to a popular Christopher Nolan movie at the Lockheed Martin imax. We are in row G, right in the middle and after seeing some reviews I am wondering if I chose tickets that are too close to the screen.
Is row G in the middle ok or should I look to exchange the tickets for further back, but all the way at the back corner of the theater?