The stuff that I loved about these boots right out of the box:
- they're super light
- they're nice and flexible
- the soles look BOMB
-they look pretty sharp
I put them through the paces straight out of the box with an 8-mile backpacking trip complete with nice trail, water crossing, beater trail and a crapton of scree. In all conditions, they performed admirably! Especially on rock; the soles are awesome as far as not being able to feel pokey stuff under your feet and great grip for how light and comfy they are.
They really don't need a break-in period as far as I'm concerned... I had no discomfort and no hot spots even with them being brand new and under the stress of a full pack and a hot day!
Don't get these boots if you want bomber support and a stiff boot. As far as I can tell, they're like a mid-rise trail runner with the sole of a great boot, which is exactly what I wanted. I don't need or want a ton of ankle support and I prefer lightweight flexibility in a boot so I don't feel like I'm walking on a brick and I have good ground-feel.
Runs true to size, perhaps a tiny bit long, which is perfect for me because I'm at the biggest end of a size 10 (I'd say it fits like a size 10.25, which is perfect for backpacking). The toe box is nice and roomy but the heel is snug, and they have fantastic arch support and cushion.
All in all, so far, I love them!!