I agree with the MACD/BB indicator.
At this point, having programmed my whole life and 4 yrs in TS, I decided to re-create all the Nexgen Indicators instead of paying 15K.
The only one I haven't finished is the fibonacci areas.
One thing that I have noticed is that their programmers spent too much time protecting the system instead of enhancing the indicators.
I have managed to enhance some of them. What I do miss is being able to take their classes. That to me, is the most valuable part of the whole system.