I'm using one. I've had it for about a year. I have no problems with it. This saddle has been used on 54 and 63 milers and I have came back without complaints. I must admit that I am looking very hard and drooling at the mouth at a Selle SMP Strike “Glider” or “Stratos”. I just like the way it looks and the concept of the design. But because of the price and I have never sat my "hind parts" on a saddle like this and rode for distance, I have put the temptation aside for now. But I'm sure I will eventually get one.
Until then the terry fly will hold me and its doing a darn good job too. I don't think you will be disappointed if you get one and I personally have never heard anyone state they had a problem with the "Terry Fly" saddle even though you may eventually find someone who did if you really looked hard and the reason it was not liked may not be applicable to you. Everybodys rear is diffrent....