I had a PP SHO for a loaner yesterday. I enjoyed driving it but was surprised at how firm the suspension is compared to my Continental. As awesome as SHOs are with tuning, driving a stock one was a bit underwhelming. Brake boosting for all it was worth, I couldn't break the tires loose on pavement. Seemed like there was quite a bit of turbo lag, too.
On the bright side, these cars are very comfortable, quiet and solid feeling. It is the tune the puts icing on the cake, though! I am not telling you guys anything you didn't already know but this was the first SHO I have driven since the gen 4 was introduced for the 2010 model year.