Comment on my bike?

I would say that you've spent al ot of money on the wrong components. Your front and rear derailleurs are pretty poor, especially the front, but then you've gone for almost top end front and rear hubs! Suntour forks, aren't exactly what is considered to be a good make for forks, and the GT frame is also pretty average. I don't know what you're planning on using your bike for, but if it was me I'd spend more money on the forks, frame and derailleurs and save money on the rest of the components.