I'm curious about your fitness level at the time of trying the 7min workout? I'm asking because it's sort of important. If you were fit before you started with the workouts, I'd expect these wouldn't be a big improvement for you.
Stronglifts looks very interesting (I've read most of thee content on the website), and it got me all excited about doing it, but quickly I realised that I can't even do basic shit.
I'd say my fitness level on a scale from 1 to 10 (where 1 is morbidly obese and 10 is an athlete) is about 2. I'm probably not obese morbidly, but I'm overweight (97Kg@185cm / 214lbs@6'1), and I've never done any real[0] sports in my life. most of my day is spent behind a desk, programming; be it at my job, or at home for a hobby. On, average, I probably spend about 20 hours (might as well be more) in a sitting position.
I tried a few of Skimble[1] workouts that were recommended for me (Easy to moderate intensity), I'd do them for 2-3 consecutively days. I'd be so sore the next few days that I couldn't lift a glass to drink; I ended up being on light painkillers to be able to do everyday things.
The 7min workout looks ideal for someone like me who's looking to take the first step towards a better life.
To conclude: Stronglifts would probably paralyse me for a few weeks after one workout. I know the author described himself as being weak at first, but people often underestimate themselves when we reflect upon our own pasts (I'm guilty of that, at least).
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[0]: I did some sailing, which required once-a-week visit to the gym, but we mostly did warming-up stuff (which, in hindsight, was pretty tiring for me)
[1]: http://www.skimble.com/