Saddles are a very personal thing and obviously will vary greatly from person to person. This is a very flexible saddle, seems to be designed as more of a hammock than a saddle. When you sit on it, it conforms to your sit-bones area and sags deeply in the center. I had to raise my seatpost up 1/2 to 5/8 to match where my Selle Italia saddle was. My first ride felt like a standard saddle that was about 2/3 broke in, but then it never got any better... the sag makes it difficult (painful) to sit up and ride when I get tired and need a break. I'm 5' 9 and 177 lbs and ride Trek Madone 5.9 230 milesweek. I've got over 2,500 miles on this saddle so far. I probably won't buy another one.
Added one of these to my MTB, and it has been a game changer. Super durable, comfortable on rides of all lengths, and dramatic pressure relief in perineal area - particularly welcome on hard hits and unexpected drops. I've used leather Brooks saddles for years, but this one might be my favorite.
I bought this saddle for my new gravel bike and love it! I have the C17 on another bike, rode that one for one month in southern Africa, and it was very comfortable under difficult riding conditions. I find the C15 even better. It's firm and comfortable, light, and as narrow as any other saddle I've used. I find the the slightly rounded seat surface to be more comfortable than the usual flat surface on most light weight road saddles.
And the price when on sale with Bike Tires Direct made it impossible to pass up!
Picked up the Brooks C15 to replace the now craptastic saddle on my mountain bike. What a difference. Out of the box comfort, no saddle rail creaks, comfortable and just the right width, and seems far more durable as well. Plus the extended warranty is a bonus for me. I plan to put some longer miles on this and decide if the C15 will start replacing the rest of the saddles in my fleet.
I do a lot of long distance rides and this saddle is made for comfort. i even have one on the bike I use on my indoor trainer! It is made of very tough but comfortable material.