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I can describe my feelings for you here.

First I will say that the feeling is awesome. 
It usually takes me at least one hour to "get out".
If I can keep my concentration properly, then feelings coming from outside of body - hearings, touches and so - just dissolve and "fall off" from me. I shortly stay in very quiet zone and very soon some feelings from my "dream body" appear - as rotation or floating movements. Then I start to touch environment around me and also my dream body itself, and then I open my eyes and I'm "there".
I have done it about ten times and until now I didn't experienced vibrations or very fast movements - just slow and quiet ones.

Simply said - this is how it works for me.

Maybe you would like to search about WILD - wake initiated lucid dreams - as your description sounds to me as perfect description of it. Very good tutorials about this method (and lot more) you can find on Dreamviews site.

I personally use this method.
Rarely I'm succesful without help of supplements, but when I use them, I have almost 100% success rate.

As Frequent Flier said - also in my case it doesn't work if I'm tired. I do this method only early morning after about 4 or 5 hours of sleep, when I'm relaxed and close to REM phases.