the Olympus while super stable etc is a very small tent,
I will disagree with this. In doing so, I should mention that we have (extensive) experience with the original Olympus model from the early 90s (shown below), and with the current slightly tweaked design.

The groundsheet in the current Olympus is 2200 m long (and in my tunnels) and up to 1350 mm wide – a typical airmat might be 550 mm wide. We have found this space ample, even in the snow, for the two of us.

The exterior height is 1150 mm: sitting up inside is easy. The windward end of the current groundsheet has a tilted wall, while the lee end has an approximately vertical wall (plus a large vestibule).
Is this ‘small’? I suggest not – especially under severe alpine conditions.
My 2c.
Cheers

