haven't used that, but I have trueRTA pro. if the same things hold between the two programs, then it should be very easy to use with good results, but it can't do some of the more complicated fuctions that other more difficult software can.
I've got WinSpeakerz too and really like it. The only reason I don't use it more often is that it's a little more time consuming entering new driver parameters when compared to Unibox.