I've tried 7-8 different saddles before ending up on the SR Allroad and am glad I gave it a try! Ergon has me between sizes with an 11.9 sitbone width and I chose to go S/M and think that was the right choice since I've never felt more comfortable on a ride. There have been no pressure points or sit bone pain in the 300 miles I've had the saddle for. Only time will tell if this is a durable saddle or not since it has a foam core that is my only worry with it so far.
I've tried 6 saddles since January and think I finally found the one for me! I went with the S/M with a sitbone width of 11.8 and think that was the right move. I experienced no discomfort on two 80 mile rides when I usually started fidgeting on the saddle after the 30 mile mark hunting for comfort.
The foam core soaks up a lot of chatter on top of contributing to comfort over long distances. My only hesitation with it is how long it will survive with weather and wear.
Great saddle. Its always hard to find a correct saddle for yourself. Very comfortable from the get go. S/M worked out foe me 5'9.