I have the ECSTA MX on one of my cars, but only during the spring/summer/fall months.
And personally I hate all Kumho's, I have been though 2 sets in the past 2 years. Constant blowage and the sidewalls are easily damaged.
I primarily stick with pirelli's, as thats basically all I have used on my other cars the past 6 years, and never had a problem (even considering they were all extremely low profile tires)