I bought my bta a year ago this month. After bringing it home, I deeply regretted buying it, thinking that with so little experience, I surely had condemned it to death. A year later, it has divided once, and has doubled its original size. It is now about ten inches across. I have it in a 29 gal., and it and the tomato clown are the centerpiece of the tank.
So what I am getting at is that they may not be as hard to keep as their reputation suggests. If you have good water quality, sufficient light, and are willing to feed it, I think they are a great addition. I have 130 watts of PCs, and I feed about every ten days.
Be prepared for it to wander until it finds a suitable spot. Mine was all over the tank for about 6 weeks, but hasn't moved in 8 months.