It is a Brother Inovis QC2000... Well that is how it is branded in Aus. And yes it does have something called AHA
It seems to have all features except a built in walking foot like the IDT from Pfaff. I am looking for info but all I can see that resembles it is a Laura Ashley Model selling in the US. This one does not have a large harp but way bigger than my little Pfaff
I am so happy you love your Brother machine. I must say it certainly impressed me at the shop with how smooth it sewed and what it could do.