The word flowers(鲜花) should be translated directly. So I agree with Estella. Translation is neither comprehension nor annotation. It's so many meaning of flower(鲜花): applause, auspice, approval, honour......so, the translation "The way to success won't be carpeted with flowers" keeps the metaphor and inspire readers. No offence. It's only my opinion.

"The way to success is always full of frustrations." I am not sure if mine is native .But I think you needn't directly translate it into "flowers".Maybe sb. would say it's chinglish. You'd better use in other words.So I am not really agree with floor 1.

My try:The way to success won't be carpeted with flowers. Please wait for better answers.

Yep,Kira.Maybe you are right. Before I clicked on the button "confirm",I had already given it a second thought.Maybe it could be either translated directly or in a liberla way.Because in some case it might be better understood if we use metaphors instead of direct expressions.:)

the last sentence"I do not really agree with floor 1".I am sorry about it.