I agree with Kathryn. S&H is perfect for training the upper body, especially if you have noodles for arms and have trouble going beyond 30 pounds for chest/bench presses. This would be me.
I have never liked weight training, never lifted so much, never built so much lean muscle for the upper body as when I did lots of S&H. I think it's time to do it again, now that winter is fast approaching. If you ever want to find out exactly how much you could lift, how far you could go, S&H is the program for you, and you don't have to limit yourself to the 3 weeks/1 month at a time that Cathe suggests on the DVD. I used to do this program for several months at a time.
As Kathryn suggests, the plan is versatile and you can differ the count to suit yourself and the needs of a particular body part, doing the 2/6, 3/5, 5/3, 6/2 counts instead of the 4/4 as she suggests.
I also do not think it is a workout that is hard to focus on and through. I am one of the most restless people I know with a boredom threshold that drags along the floor and a brain that can never be turned off. I find it hard to go to sleep until I am literally falling down with tiredness and I have trouble focussing and sitting still sometimes. And yet! I never had any trouble pacing myself through S&H. I found it therapeutic in a way. There was no rush to lift that weight and get to the next rep, as there often is on Cathe's workouts, especially the endurance ones. You have time to focus on nailing your form, and concentrating on the muscles you are recruiting. Mindfulness helps in building strength. If you are a person who is constantly rushed, stressed for time, upon whom people are constantly placing demands, constantly striving to scratch items off your to-do list, then S&H could be very beneficial to you, in an almost yogic way. While you are doing these workouts, your mind centres itself on what you are doing exclusively. It gets hard to lift that very heavy weight by the 8th rep, you HAVE to FOCUS, there's no wandering off mentally thinking of last night's telly episodes!
Also bear in mind that there is no obligation to train every muscle group in the same way. For example, I use the S&H for the upper body, but I prefer more endurance workouts or a different rep range and speed of lifting for the lower body. Also running injuries in the last three years have brought home to me that I need more than squats, lunges, plie squats and deadlifts, which is largely what the lower body program comprises. I'm not saying that the lower body program on S&H is bad, just that I find something else works better for me. I have done the lower body section multiple times. You can take from this program what works for you and add it to your own personal "blender" of workout types and styles.
For the very fact that S&H is such a different style of training, I think it is far more valuable to have than yet another high rep weights DVD or another total body weight DVD. Those feature heavily in Cathe's workout library, the slow and heavy approach stands alone.
Clare