It would be hypocritical of me to say 'don't go in winter' since that's exactly what I did over 6 consecutive days on my first trip to Scotland, and with no experience at that time. Marvellous it was too! However, we had a minor epic on An Stuc that you may find of interest, in terms of the mountain itself and winter trips in general.
https://www.walkhighlands.co.uk/Forum/viewtopic.php?f=9&t=460What I would say is, if you are planning to get out regularly in winter, a winter skills course is invaluable. As well as learning the range of skills, for me the most valuable element was being introduced to the terrain where they were needed. Led by an experienced guide, using and practising the new skills on varied and steep terrain gave me a level of insight and confidence well ahead of that I could have built alone.
As said in earlier posts, if the snow is soft and there are no dangerous slopes there will be little chance of problems, so do get out to these type of hills. But snow underfoot can change its nature within a few steps, be prepared to turn back if necessary.
Enjoy the winter and all the best, however you decide to proceed!