Spanish learners which Spanish accents are the hardest understand?

Title: Spanish learners which Spanish accents are the hardest understand?
issuer: Reddit
list of contributors: fiatars
Date Accepted: 12/05/19
content: I’m from Spain but I think the hardest to understand is Puerto Rican. They speak fast, pronounce things their way, and use a lot of slang and Spanglis
Source: https://www.reddit.com/r/Spanish/comments/8kfhte/spanish_learners_which_spanish_accents_are_the/

Item sets: Judgments (English); Speed- fast; Origin- Spain; Puerto Rican (fast); Dialect- Puerto Rican