Above all, Slime is a cheerful, good-hearted show that is out to make us smile. If you want conflict and challenged characters and so on, this is not for you; it's all about Rimuru solving a succession of problems and running over a succession of obstacles as they build a home and make friends with people and various great character interactions go on. The show fundamentally likes pretty much everyone, and almost every enemy gets a chance at redemption. In an ocean of grim shows where terrible things happen to people and certain sorts of characters are walking cliches that are used only as the butt of jokes, Slime is a breath of fresh air.
Slime is not flawless, and in a certain way it's boring. But I always enjoyed it and it reliably brought a smile to my face when I watched a new episode.
I have to admit that I was watching it too, even after suspension. I think that, in the genre of the heartful action, I would prefer something like Dog Days S1, or Gundam Build Fighters S1. But the Slime will do.