I bought these shoes after being a lifelong Asics Gel-Kayano user. The Kayanos were rubbing my heels and I liked the way these Guide 5s cupped my heels. I was also keen on trying out this models new 8mm offset which "encourages a smooth transition with less impact". I was loving the shoe until I developed Achilles Tendonitis. I have been undergoing physical therapy for about a month now since the injury developed and the therapist attributes it to the new 8mm offset; apparently, they have been noticing increased injuries from this new feature. That doesn't mean people should avoid this shoe but just be aware that you should spend more time transitioning to using this shoe, almost as if you were transitioning to barefoot running or trying to change your stride. Even little changes can lead to injuries if you don't give your body enough time to adjust.