Final Fantasy VII: Crisis Core impressions at Siliconera.

"That’s the consensus from the supporting cast of Crisis Core: Final Fantasy VII. Cloud looks up to him and Aeris adores him. Square-Enix even makes him loveable to the audience. Unlike the mentally mixed up Cloud, Zack has a clear dream to become Soldier First Class. In the early part of the game Zack has spunky enthusiasm while you get to see him grow into a hero. He’s goofy at times too with overly animated motions, which is a refreshing change of pace from the cool tone typically given to characters in the Final Fantasy series."

Full Source: Siliconera