I've purchased a SA saddle 2 years ago and was so happy with it and I purchased another last Holiday on sale. Those 2 saddles have replaced my Brooks on my 2 most used bikes. The first has over 3k miles and the other from last year has 1k miles. Both have been great, comfortable from day 1. I know some have said they have had issues with sag, but other then a little adjustment during the first couple hundred miles, I've not adjusted the first saddle since. The second saddle was the same way, some adjustment this spring, but after that its was great all this riding season.
I've 200lbs, so not a lightweight. I just followed SA instructions and didn't adjust much in the beginning. I also never adjusted the saddle after using it. i'd always wait until the next day to let the leather return on it's own, which seemed to work. I may pick up another saddle this year for my mtn bike, but I really don't spend much time in the saddle mtn biking, so may not be worth it.