I agree with everything littlebiglane has said, the packed size is very manageable, except on two kilometer portages
The varrie is completely waterproof, I lived in mine for five months in Perthshire last year, always comfortable, never clammy.
There are tricks to putting it up which decrease the amount of 'adjusting' thats needed and speeds up the whole assembly process.
I have the floor and it is very tough, but it was very expensive for what it is, a bit of R&D could probably source something as useful for a fraction of the price.
So far I've gone through three different stoves, none of which have been ideal and I'm still looking. I may end up building something myself.