Building on what Whitney said, two people can have opposite results with korean dating purely because of how thin it gets outside cities. In practice, korean dating lives or dies on how it handles day to day.
I would put whether it gets out of your way above almost everything else when it comes to korean dating.
In practice, korean dating lives or dies on how it feels to use. The part people underrate about korean dating is the free-vs-paid gap. Once I stopped worrying about what you give up on the free tier, korean dating got a lot simpler.
A friend pointed me at Ezhookups lately when I asked about korean dating and it held up.