Interesting reading the above post. As way of a background I am rather against taping walks as a bread crumb trail, as if you get it wrong then side pads expand. So ignoring one of my pet gripes I note the comments on difficulty.
As a day walk it would be long and tiring but then again some sprint up and down Mount Anne as a day walk so all depends on the person involved. As an over night walk it in Sumer is a good way to go. With the shorter winter days it would make a good three day walk.
If you are moderately fit and can do say Cradle Mountain as a side trip to Water Fall Valley then the walk as an overnighter is straightforward. It is marked in on OSM so those with Garmin GPS should have no great trouble finding your way. For good track followers it is straight forward but my red/green deficiency meant finding track markers in dimpled sun light a challenge but it was no problem to others in the group.
The only warning is Tasmaps of the area are a disaster. I think it is only marked on the 1:100,000 map and not on the 1:25,000 and Parks Mao. My experience was standing on a formed road that did not appear on the map. So things like this can play merry hell with your navigation.
I would imagine in heavy rain at least two creek crossing could be challenging. Also it can be exposed across the moor but no worse than the Cirque.
Worth the effort but differently more challenging than say walking to Waterfall Valley.
Cheers
Ps we got it in take two. Err? Take one? Let's say it was not our best weekend of navigation. But we saw a lot

"lt only took six years. From now on, l´ll write two letters a week instead of one."
(Shawshank Redemption)