I was lured by the hype and the price of the Optimo 727s, and they SEEMED to be a great tire, but after 46,000 miles one of them just disintegrated for no apparent reason. Luckily, I was driving at about 40 mph when disaster struck, and there was a Goodyear/Dunlop/Hankook Dealer about 80 yards away !!
I shucked the whole set of 727s (had plenty of tread left) for a set of Goodyear Assurance Comfortreads -- it was like driving a completely different car -- with smoother ride, more positive steering, much quieter, and superior handling characteristics at all speeds.
The 727s are a 97T tire, while the Goodyears carry a 98T load/speed rating.
We live in the desert, and do a lot of mountain driving/touring at fairly high speeds. The Comfortreads perform beautifully on both dry and wet roads, and the car feels (at 130,000 miles) more stable than when brand new.
I'm glad I coughed up the extra bucks for the Goodyear Comfortreads-- the differences are WELL worth the money !!