I liked my BA Tetras, I had 10 of them in my last 220. Biggest irritation was they had an obsession with getting trapped in the overflow columns, which I still have no idea how they were getting in. I had to pull them out of the overflows daily, it got annoying quickly.
They were fattys though, typical dither fish, nothing scared them, would eat absolutely anything you throw in the tank without question. I had Geophagus Dicrozosters in the tank and would occasionally feed them earth worms, imagine my surprise when one of the tetras went and took the worm from the Geo while the other tetras proceeded to chase the worm-holding tetra. They were entertaining indeed.