I listened to this with no expectations considering I'm not even a Blackpink fan. I really enjoyed it. Seoul City is a vibe. Also I think i prefer the solo versions.
I love Colours too! It's her first album released since i was a fan. Crazy to think it's been more than 10 years now. Also Rainbow is another favourite of mine. Real Me is that girl.
I live there. I don't think it's as bad as they say. But still be careful to your belongings especially on public transport or crowded places like you would do in any big city. Hope you enjoy your stay.