I think there is only one of our members on here with the APR TBE and that is WhiteGTI.
And his sounds like no other, i was listening to it on the rollers at the last meet and it sounded like a spit-fire.
I have no idea what it is like inside, but from the outside it was both loud and boisterous.
Its a question of personal tastes once again, all i can say is i loved it.