I personally feel this is the best unit out of all. It really challenged my sustainability of following the plan, and I tried my best to endure over all long period of time. However, the school work has crushed me and in the last couple months I haven’t exercise for a long time. I have tried to get some free time to go to the gym every week and get some work out. I tried to set a fixed time to go to the gym and so far it didn’t work out perfectly. I think I will do some more exercise over the weekend and during the vacation.