jubilant
adj
(fml 文) ~ (about/at/over sth) showing great happiness, esp because of a success 欢欣的, 欣喜的(尤指由於成功)
Liverpool were in a jubilant mood after their cup victory. 利物浦队夺得优胜杯後喜气洋洋.
I suggest that we ask users of this machine what they think about it. We can photograph them using it too. Then we can put their comments at the top of the advertisement in big print. We can bring in some humour too. People enjoy reading humorous ads.