Personal opinion: Deathslinger is solid and balanced
I play on Xbox for reference. He was difficult and heavy to play at first but getting a feel for his power has helped a lot. I never feel weak when i’m playing him and there’s moments where i harpoon and hit a survivor that i wouldn't have been able to with other killers.
Something i really like as well is that none of his add-ons feel necessary, like Night Shroud recovery on Ghostface. His base cooldown and reload is juuuuust enough for me to land that second shot after a hit. The ideal scenario is an M1 into a shot but thats not always possible.
I’m having a blast with him. Is he mega strong? No. Is he weak? From my point of view, no. He has strengths and weaknesses but it feels as though a lot of people are focusing on his weaknesses and not his strengths.
Feel free to annihilate me in the comments bellow.