Actually, although GTPs do have nice, long teeth, the ETB is the one that has the really big teeth that I think everyone is thinking of. Bites from an adult can be pretty nasty. I've seen a few 5-6 footers requires a stitch or two. But yeah, most people think ATBs and GTPs have the nasty teeth, but it's really the ETB. They have these enlarged frontal canine-like teeth that look almost like a pair of fangs! I have a pair of ATBs myself, and my male looks like a big version of this guy on here! =) This one belongs to the "colour phase". They tend to be a bit more pricey, but I think it's totally worth it! My male is definitely the more even tempered of my pair, however, they will BOTH bite me something fierce if I allow them. They female especially...she starts striking from the minute I open the cage! =P
Anyway, BEAUtiful snake here! A good temperment as a hatchling is a great sign for this species, from what I have heard and experienced. You're a lucky person to have found such a gorgeous snake without a nasty attitude! Haha. =)