I don't use them because to me the poetry detracts, and the playing card inset gives more info - even if you're not a cartomancer, it's useful to be able to do a quick check of which cards are courts - and you can't do that with the poems.
Besides, the poems are a bit....odd. If the ring is to the right, you'll break up, if it's to the left, it means you'll stay married (or is it vice-versa). Anyway, if I saw the Heart + Ring + Stars + Moon + Lillies all in a block, I'd be inclined to think the relationship is solid whichever side it fell on, whilst Ring + Scythe + Coffin + Mice, etc. would tend to give me the other view - again, regardless of side.
And some of the poems are so badly translated they don't make sense at all - at least the way I read.
You can see the poems
here - the cards are turned face down, but if you click each one, they'll come face up with the poem prominent in English - at least that'll give you an idea of what they say, and you can decide for yourself whether you think they'd help.
