We tried all 4 kings available. Butao king was still my favourite, with the broth rich but not too cloying. Black king was way too thick, almost like tar, making it really difficult to finish. The taste of the noodles was vaguely reminiscent of black pepper crab somehow. Red king at level2 spiciness(5+2) had just the right kick for someone with a below average tolerance for spice. Green king was interesting, tasting like italian food. Generally the food was enjoyable, although noodles got a little soggy towards the end - go for hard noodles. And the egg was the best ramen egg i ever had. Worth a try!