The main difference between RTAS and TDM D-Verbs is that there is some chorusing (for thickening and randomization) in the Church and Hall algorithms in the TDM Plug-In that is not in the RTAS version. While these differences do exist the plug-in remains extremely useful. The plug-in interchange between LE and TDM of what is essentially a similar reverb sound is better than completely depriving the user of interchange.