These seem to be an increasingly popular tire among Prius owners, despite the fact the tires only came out 2 months ago. Since getting them installed ($372.80 after $100 MIR), I have taken one road trip and two commutes to work. All in all I have about 500 miles on the tires. My previous tires to compare them to were the Mastercraft Strategy, purchased by the owner before me. Here's what I have to say about the Yokohamas : The first thing I noticed was the way the car handled. The tires connected with the pavement in a way I can only describe as synergy. Comfortable. It felt as if the car and the road were working together to get things moving (like an invisible conveyor belt). Very secure when cranking the wheel and turning corners at slow speeds (5-10 mph). At slow speeds (5-15 mph) the handling is tight, very tight. At 25-35 mph the car rides nice and smooth. I wouldn't say it glides faster than other tires, but feels reassuring. At 40 mph the car loses a bit of its smoothness and now begins to feel average like other all-season tires. Bumps are hard and jolting. At 50 mph + you start to sway a bit and will need to keep your mind on your steering wheel. Controllability on the highway (dry) is good but not fantastic. On a windy day I was getting knocked around like a toy on the highway. This was the same way my Mastercraft tires behaved. On our jaunt to Sioux Falls we got rained on. Controllability on the highway in wet weather was frightening at best. Immediately the car started drifting and I felt very insecure. My wife begged me to slow down (we were going 65). I tested the security of the tires a little bit by gently rocking the wheel back and forth. I did NOT feel safe doing this. I did not feel like I had control of the vehicle. We were definitely hydroplaning and the tires were doing nothing to keep us from that. I slowed down to 45 or 50 and other cars passed us by without any problem. Gas mileage has been fair, I averaged around 44 mpg (as low as 36, as high as 58) on my Mastercraft Strategy's. With the Yokohama's I have generally averaged 47 (34 low and 61 high). Overall I am not phenomenally impressed with these tires. I love how they feel at slow speeds in town, but feel drifty on the highway, and you WILL feel bumps and dips in the road. Road noise is less than average, and a few dB quieter than my last set. These tires do not fair well in a downpour, they drift a lot and make you feel out of control. Perhaps when I get more treadwear on them I will see a significant increase in MPG and performance. These tires I would rate a 6 out of 10, 5 being average, 10 being phenomenal. My Strategys I rate a strong 4, maybe weak 5. Got some pictures for y'all too. MPG was from my commute from work to home, a hilly highway.