This shoe is highly rated by many running editors. I would agree with many things. First, he ran 2.5 miles straight out of the pits in the fastest time of over 75 attempts. I didn't feel like I was running fast, but I was very surprised with the end result. This shoe appears to lift your feet and propel you forward. This helps a lot when going uphill. This shoe runs true to size and has a medium toe top. I would not recommend this shoe for walking as the heel is a bit narrow which makes it a bit unstable and it feels like the back of the insoles are being lifted by the nylon plate. This shoe seems excellent when running as the instability seems to go away and the insole lifts. Speed 3 is already out and we heard that they made the platform wider which solved the instability issues. I will mainly be using this shoe for 5k and 10k races. This is my very first Saucony purchase and I am very satisfied. My other shoe rotation consists of Brooks Glycerin 19 and Hoka Mach 4.