Ben Lomond Circuit Walk

Planning a trip to the north of the state in mid Feb. Just reading about the Ben Lomond Circuit Walk in "100 Walks in Tasmania" by Tyrone Thomas and Andrew Close pp 125 - 128. They describe a 12.7k minimum 5hr circuit walk via the Plains of Heaven and returning via the ski village and road. Anyone done this walk? If so advice on terrain/track conditions etc would be appreciated.