Lately I've been including Level 1 in my workout routine once a week. I started to consider it one of my 'easier' days in the week, e.g. I did it earlier this week when I had a cold and wanted a not so intense workout.
Today I finally did Level 2 and wow I was drenched!!! that short workout was more exhausting to me than her whole BFBM dvd! I had to take short breaks a couple of times and felt like

at first, but now I'm strangely excited to have that new challenge in my workout

especially the compound moves seem a lot harder than in Level 1!