I prefer somewhere in between, enough for you to feel like the grind is worth it but at the same time you didn't felt you spent a lot of time grinding. And also that it'd be nice if you'd also be rewarded with something nice at the end too.
I'm against NTR but I always find it interesting how deep and philosophical arguments about NTR usually get, I think it's primarily because there is alot to discuss about it, especially considering the fact it has a massive impact on relationships.