I finally decided to go all out and order Samdasoo bottled water

I was looking through cheap options on Coupang like Woongjin, Pulmuone, Aquasys, Gomgom Sparkle, etc., and when I asked an AI, it said Samdasoo is overwhelmingly superior when you consider factors like the water source.
I skipped Baeksansoo because it's from China.
Lava water is also good, but it's not strictly pure bottled water.
I think big brands like Pyeongchangsu, Ice's, and Montbest are better, while Pulmuone is a tier below them in terms of water source, etc.