Stunningly fast rolling, easy riding, great turning tire. Just a wonderful ride. Reasonable durability, over 3,000 miles. Modest flat resistance (only two in 3,000 miles) If you like a performance ride, this is the tire for you. Downsides: A bit pricey, but so are many others. Also, sometimes hard to find.
Vredestein makes a superior tire, I've riden on their 23mm tires for a decade without a puncture. These 28mm tires are very comfortable and handle well in the downhill curves. Not cheap, but worth it. I highly recommend them.
The Vredestein Fortezza Senso Superiore Road Tire is a legitimate upgrade to my current tires. I went with the 28mm and found greater ride comfort without and speed reduction.