I can't give much information, but if you are totally new to large breeds and have ANY fear at all being scratched or bitten, remember that its head is nearly as big as your mini rex and it will hurt 75 times worse getting bite or scratched. Not saying they are a mean breed at all, I just noticed I have to be more careful picking up my Flemish then the other breeds, and my buck I had while in 4h was worse.
the downside to giant breeds is that it takes forever to be able to get babies... and the housing you must be careful on their feet.