In reply to alancash100:
It's a great day out.
It's hard work and time consuming under powder. Going clockwise means you can bail down the Coire a'Mhasgain path if required. If you need to escape sooner, finding the easiest route down the hillside W of Steall Falls is not trivial!
Difficulties are modest and fairly short lived.
Navigation is fairly straightforward, though there may be numerous cornice hazards.
Crossing the burn below Steall Falls can be awkward if it is in full spate.
The wire bridge at Steall is exciting for anyone under 5ft tall.
The normal approach to An Gearranach is not guaranteed safe from avalanche risk: it may be better to keep a bit further E instead.
A slightly shorter and less committing alternative is to do the N ridge of Stob Ban follow by the Devil's Ridge.