Have 50 miles on the shoes so far, and love them for short to medium distance training runs on hilly single track and fire roads (1-2K of vert), with some roots and rocks. On Jeremy’s advice, I bought my “normal” shoe size (US 9) and the Planets fit my somewhat wide midfoot perfectly. I get a good heel lockdown, with plenty of space—but not too much space--in the forefoot to accommodate my “un-tapered” toes (my pinky toes get squished if there’s not enough room). And for me, getting those things right in one shoe is not very common!Traction on dry surfaces is superior, and the midfoot provides a solid, somewhat cushioned landing on the downhills. I haven’t been out with them on very technical trails yet, or runs longer than 10 miles, but I look forward to seeing ... MoreHave 50 miles on the shoes so far, and love them for short to medium distance training runs on hilly single track and fire roads (1-2K of vert), with some roots and rocks. On Jeremy’s advice, I bought my “normal” shoe size (US 9) and the Planets fit my somewhat wide midfoot perfectly. I get a good heel lockdown, with plenty of space—but not too much space--in the forefoot to accommodate my “un-tapered” toes (my pinky toes get squished if there’s not enough room). And for me, getting those things right in one shoe is not very common!Traction on dry surfaces is superior, and the midfoot provides a solid, somewhat cushioned landing on the downhills. I haven’t been out with them on very technical trails yet, or runs longer than 10 miles, but I look forward to seeing how far I can push them. I’ve been wanting to simplify my shoe inventory, and the Spin Planet will definitely help me do that. It’s a comfortable shoe with a great fit and lots of ability.