I have only had it a couple of days putting 10 miles on it the first day and 12 the second. I am not able to ride as long as I'd like due to time constraints so most of the time my outings are really like training rides. I'm a solid 170 lbs at 5' 8".
I may not be the best candidate for someone looking for an opinion of a high mileage seat as I have to try hard to get in 100 miles a week.
The comfort over the Italia Flite and the San Marcos IDE is amazing. I think what I found that I really like is the larger split in the center and the lack of flex in the Rever. I have found myself sorer than I should be with the other two. It sits and stays where it should.
Hope this helps.
Scott