To make it clear, the Notch now does come with apex pullouts, no need to add them.

I suggest to use a separate stake from the one at the bottom of the door panel to get a better angle and to allow opening up both of those door panels if desired.
(can’t do that with the Moment DW)

Regarding how narrow or not the Notch is, in a standard set up those poles are 34″ apart and that is about your shoulder room (the walls of the inner are vertical)
This is me (5’8″ , 155lbs) on top of an Exped mat.

depending on the space required that could look spacious or claustrophobic, you decide.
Of course you can also un-clip the inner (if bugs are not about) and use all of the space under a fly as a shaped tarp, and maybe clip back the inner when ready to go to sleep.
BTW, to get the 34″ you would need to push the net out but you would be far away from the fly.
To be clear, I don’t think that the Notch is better than the Moment, just different .
Because I always use trekking poles it works for me but I did like using the original Moment too.