In reply to ralphio:
Others might feel differently, but for me, ridges like that are different from 'straight up' climbs. (Mind you, the latter still have the walk in and walk off, as well, which can be hugely demanding).
4 of us did Liathach in good winter conditions (two ropes) and it wasn't the technicality that was a challenge so much as -
(a). the energy level required to do 2 Munros and a top in snow, and
(b).the up and down climbing made quite different demands on your head/attention/thinking.
The AE isn't quite as arduous as Liathach, perhaps, but the exposure is there just the same. It'd make for a hard day of Winter Mountaineering, requiring fitness and good basic alpine skills. Skilled moving together on a rope would be useful, perhaps.
I've no idea what current conditions are like. Certainly one to tick all the prep boxes for before trying it.