I found nearly all of Disco Elysium’s characters so unlikable, (especially?) including the player character, that I could not enjoy it at all. I think I like the systems in it, and I’m happy when an RPG exposes its dice rolls; the voice performances were all very good; I just couldn’t stand it after 5 hours of trying.
You’re definitely not supposed to like Harry as a person. He is at best insane and at worst a racist, mysognistic, alcohic drug abusing piece of human garbage. It is also very easy to be put off by even the good people because Harry has already wronged most of them and they have already had enough of his shit by the time you take control.
I don’t know, maybe it’s just because I relate to him but I do kind of like Harry. Yes, he’s not a regular “good person”, but he’s also much more complex than just a “bad guy”. He’s flawed, tragic and ultimately incredibly human. I think he’s a fantastic character, just like most characters in Disco Elysium.