I always wear size 8 in all shoes and boots and these fit great in length.  I love the Ariat brand and have bought their shoes for many years but this is my first pair of boots.  I have a narrow heel, a med/high arch and a B width.  I found them a bit snug across the width but they are breaking in just fine.  The support is excellent.

I have worn these about 10 times in snowy, wet, muddy and hilly terrain.  I agree with the poster who said they soles are a little too slippery for rock climbing.  I found the soles a little slippery in the snow and mud.  I plan to use them next winter with my yak-track and I don't rock climb so they are perfect for winter.  I will just keep my yaktrax on longer in the Spring.