I think it really depends on the style and look that you want to achieve in your house - you should never give someone the advice to use wallpaper without knowing their design aesthetic. With that being said, I think that wallpaper is a lovely touch in older heritage listed home, because you can add the modern touch through it to the home, depending on the pattern.

We have installed wallpaper behind glass splash backs on many occasions without any problems, the glass usually being attached by a thin beading of clear silicon applied around the inside perimeter of he glass, then fitted the day after the wallpaper install. MOST importantly the INSIDE of the glass be kept perfectly clean on install as even fingerprints will stand out

I selected Neither - Reason. I think that particular room looks great because a huge amount of expense has gone into making that room picture perfect. It is unrealistic to think that the average home buyer / owner will have that kind of money to invest in a room. Generally I would never put wall paper on a ceiling. The only thing that has made this room work is that they have been able to invest a lot of money into making sure this room is "show room" quality by matching the paper and the carpet and all the furnishings. It is not a homely room. It is a room for a palace or for the rich and famous. You could not relax in this room and I do not think the average family would ever allow their family to use this room - most of us do not have "special occasion" rooms.

One can express their thoughts and ideas using wallpaper much more than bland paints and the final outcome can be a thing of beauty such as in the pictures posted. The internet, especially Pinterest, is full of images that will blow you away and there are innumerable sites that supply the many variations available. at reasonable cost.