It's Comfortable
I use it on the road. It's perfect for someone like me who rides alone and takes it easy. My groin doesn't hurt at all. I would be lying if I said my butt doesn't hurt, but compared to a road saddle, the level of pain is different. At first, I sometimes felt unstable due to the free feeling in the front of my groin, but once I found a position that was comfortable for riding, the instability disappeared. No more worries about long rides due to saddle pain.
Pros: comfort
Cons: bad appearance