Working with the T-De-Esser was very reminiscent of what a real life vocal sounds like since in real life, we don't really hear all the harshness, loud S's and unwanted high frequency that gets translated to our digital music world. This plug-in is user friendly, very comprehensive and easy to use. The look ahead feature in this plugin is a top tier feature and, in my opinion, is a must have.
I know there are a lot of DeEsser plug-ins out there, but not many of them can do what the T-De-Esser can do. I highly recommend you to give it a try and see the magic for yourself.