It is incredibly hard to put wallpapers on walls that are not straight. Especially when the wallpaper has 53 cm pattern hight (and if you in addition have a wife who isn't much help). Well, my husband did it, our hall now has new wallpapers and I just love them! There is still a lot to do before the room is finished, but I am happy for now. Our living room is of course a mess, as the stuff from the hall had to be moved somewhere and it is no use putting things back to their places as they would be in the way when finishing the room.
By the way, the small weights are very useful when spreading the adhesive behind the papers! Nice to have some use for things you just bought for decoration.