I put some Koni yellows on my 944 S2 in high school and loved them. I put some Koni oranges on my Mazda 3 in college and loved them too. Never tried the Eibachs so can't comment on them, but haven't had an issue with Koni. I did try some KYB dampers once that lasted about 5k before they started squeaking, so I'd stay away from those. If you race on the weekend or do autocross, I'd recommend the yellows for adjustability. If not, the oranges will treat the just as well and cost a lot less. Happy driving.
2012 Mustang v6
1969 Porsche 912