Maintenance should be no different to any other house the same age. I agree with the poster further up the thread that the curtains (and some other things) would look nicer if they were more in period- lots of fabrics/covings/etc. are available that have the right sort of designs to work.
We have a 1920s house, but, sadly, just about all the original features have gone. In our case I see no point trying to put them back, and in some instances it wouldn't even be possible due to the way extensions have been built, so we're going for our own taste, which is partly Arts and Crafts and partly plain and modern. Very out of period. But in the end, it's our house, and we have to live here, so as it's hopefully our last house, we may as well have whatever we want regardless.
So we're having a modern oak kitchen, and a dark red Gothic 'library'.