I found this DVD a good starting board for people who have not exercised before or who have not exercised for a long time (me the latter) as stages 1 and 2 ease you into the exercise, and stage 3 is a higher tempo blast of exercise. I definately enjoyed stage 3 as the exercise was matched to the music and I built up a sweat and felt great for doing it afterwards. I dont however recommend this dvd for someone who is looking for a high impact aerobics dvd (i.e. if you are used to a hugely challenging work out) as I think you would probably be better off getting Nell McAndrews if you want something high impact. However, I cannot fault this dvd for the fact it eases you back into exercise, and I am sure doing this 4 times a week you would see great results, and then be able to step up a notch to another level of fitness, thank goodness there are dvds out there that allow for beginners and people who havent exercised in ages to get back on the fitness wagon. Also want to say well done to Rebecca, losing 12 stone takes a lot of dedication and sacrafice, people who have never suffered with weight problems do not understand how hard it is to lose it, so well done!