I've been using these from way back when they were just released under Jereon's name - Barricade, Reel bus are goto products for me - the other free ones I also use regularly - I recently purchased Loudness and am just leaning that.
I haven't got TB Fix just as yet as I think it may be a little technical for me!! Bitflipper did try and explain the concept but it I'm still no quite sure what of why you would need it - I hasten to add, through no fault of Bitflippers excellent explanation, more through my ignorance!
Nigel