I have a 2008 GT model (twin spark), nice bike but like everyone else said, go for the new Wee or the Glee!
I'm waiting for prices to come down a touch and maybe tempted next year to buy a Glee.
I've only sat on the Glee in a showroom but it felt good , lighter it seemed and just a bit sharper on styling.
Both good bikes but go for the new one!
Dave