I'd be pretty happy to get him too. 17 goals (only one of them from the penalty spot) and 10 assists is great for someone playing at Depor. Scrappy striker in his prime who likes to put pressure on defenders, knows the league well, and can play wide too. Seems to be available for a good price.
Deportivo bought another striker for €4.7m from Cordoba, their largest transfer in ~10 years, so it's a good hint they want to offload Perez for a good sum.