I am about 2" taller than you about the same weight (at the moment...) and a year younger, so I think that you will fit in there really nicely.
(You should be able to tell by the way I move inside it in my video...
http://www.youtube.com/watch?v=SIt1O...2&feature=plcp)
The Notch is a Moment designed to be used with trekking poles. Because of that it is larger but lighter.
Another advantage is the double vestibule/ double entry.
Great if the weather changes, if you want to ignore another tent on one side of you or to watch the sunset from one side and the sunrise from the other as I have in a few occasions.
(with the Scarp)
Some will like the two walls so that you can either use the inner as a bug net by itself or the fly by itself , for example to get more room under if you have a mate in there playing cards or eating...
The Moment on the other hand is faster to set up, easy to do (for me) on snow and you can add the extra pole for a freestanding mode.
BTW, I have not tried the Notch on snow but I set up tents in my head too, so I can "see" how to do it.
That helps with snow loading too (not a winter tent but good enough for me...)
Franco
My fav Moment...
Moment-2-1.jpg