I had two of them (silver 04, black 03) over 10 years and put a combined 130k on them. I love the refinement, road feel, MPG, and power of the SHO much better. However I miss the V8 sound, RWD and a center console that didn't take up half the interior space with a tiny center compartment. As cool as these cars are I'll likely never get another "wow that sounds mean" comment again when parking the car. SHO's kinda blend in with everything else. I would get as many compliments/questions on the Marauder as I do my mustangs.
The SHO really is a superior car. It just lacks an engine voice and has a casket sized center console.