Another GT model ID needed!

[bmxgirl]

Mate at work gave me this. Its been painted black unfortunately, but its a GT and frame number is AD06I00604.
It has a twin downtube which ive never seen on a BMX before.
Looking on bmxmuseum it looks like it could be a GT Mach1 Expert.
It also looks like it was originally blue.
So is it what i think? What year is it? and is it any good?

[HEYWOOD BMX]

2009 GT Mach one Expert,got one here.Designed for kids and have very short toptube.Some were stickered as having chromoly downtubes,others as full hi-ten.Serial numbers won`t tell you which is which.Not very good as parts are pretty bargain basemet,retailed for £150.

[southern andy]

Yep, my son's got a Mach 1 Pro here.

He loves it and rides it all over hence the condition. 

[bmxgirl]

Thanks 
I'm going to try and get all the black off it coz it looks terrible!
Too cold to work outside on bikes at the mo tho