Oooohhhh I like this thread already! Thanks for starting it Elise!
I've been working out with Cathe regularly since October 2010 and I recently completed my first round of STS. The following are some of my favorite "successes" from the past year:
(1). In every post-STS full body or circuit workout I am lifting heavier (though only slightly on some exercises).
(2). Pre-STS I could only do 4-5 push-ups on my toes at once and now i'm up to 16-20 without stopping (THRILLED).
(3). I've always struggled tremendously with abs. Since March 2010, I've been incorporating abs 3-5 times per week (thanks
Wendy for the suggestions

). Though I still find many of Cathe's abdominal workouts extremely challenging, i'm also finding I can actually complete most of the routines with minimal rests/breaks (I used to incorporate "vacations" during Cathe's abdominal routines

).
(4). Since I started working out regularly with Cathe, my cardio endurance has improved dramatically. 9-10 months ago, I was struggling to complete Imax 2 and the thought of even attempting Imax 3 made me nauseated. Now, Imax 2 is just fun fun fun (even though i'm still sucking wind at various points) and Imax 3, while still very challenging, no longer sidelines me (i.e. I can complete it without extra breaks and/or fainting

).
I can't wait to celebrate other successes. Let's hear 'em ladies!
Katie