Apart from everything having to be much bigger than for a standard sized pair of buns (housing, litter trays,water bowls etc), and it costing much more in feed costs, giants are exactly the same as any other bun, but generally tend to be a lot more docile.
My pair of contis are 4yrs old now, so I have redesigned their accommodation to reduce the height of the jumps they do to get to the different levels in their shed to reduce any possible back or leg injuries,as they can suffer from joint problems as they age.
And if you let them in the garden you need to make sure that if you have any plants you like, they are kept 4ft up, or higher, and the bases of trees are well protected.
I swear my pair are like beavers:lol: