This is by no means a bad book/collection, but the content of the poems wasn’t for me. It tended to reflect upon old stories and myths so I needed to from time to time research a bit and it caused the poems to loose some of their allure. When reading poetry for me personally I like to reflect and think about the possible meanings, this reference of caused a huge disconnect. Also these were originally written in 1910-1930 about so culture and the world is also very different.
Some of the poems are absolutely beautiful and Osip Mandelstam had a way with words. Additionally, Peter France did an amazing job on the translation.
Poetry style and taste is very dependent on the individual so I would prefer not to recommend or tell anyone not to read this. I would look into the poet a but more and then make your own decision.