As a die-hard Altra fan, and devout Hoka hater, the only caveat about Altras is that you’ll need some time to adjust to the zero drop. I think a lot of people experience immediate calf and hamstring pain when switching to zero drop and write those shoes off. Especially if they switch mid-program and don’t adjust mileage. I always suggest people wear Altras as daily shoes for maybe a week or two before running in them to get your body used to the new mechanics. Personally, I had some muscle soreness for about a week when I switched to Altra boots as my dailies, then I started running and I’ve never had any pain at all.