This seat is really comfortable and appears to be well made. First ride of the season with the seat was a short 60 mile ride. I will say there was no butt fatigue at all.
The only down side was to moved my body up and forward a noticeable amount which felt different and I havnt got use to it yet. May have to adjust my bars and other adjustments.
I would buy a Mustang seat for any bike I own in the future.