Auto-Rank is the AI on All poetry which lets you know which words are stong or weak, and points out clichés. But it is fairly inconsistent. I agree that the word "heart" as a synonym for love is fairly cliché, as Tom Lehrer pointed out in one of his songs about 60 years ago ("At your command / Before you here I stand / My heart is in my hand / (Yeechh!)"

However, Juliet died of heart failure, and when I write about her death I am literally talking about the organ, not the symbol. So I wrote the limerick to end with "heart" then substituted a phrase and the dumb AI would not quibble with. 

As with a previous poem on the topic, currently humans beat AI. They may get smarter.