Normally I take an 8 in Vogs but I did take an 8.5 in Guides, so when these came out I actually ordered one of each size to test them.  The 8 felt too tight, and while the 8.5 seemed to be okay in the width, the length was too long, placing the arch support too far back from my arch.  Sadly, I had to send them back, because they look fabulous.  I'm still considering getting the 8 again and stretching out the toe box, but I'm not sure about it.

UPDATE:  Went to the Fluevog store for new Guides, because the 8.5 really were a bit too tight.  I ended up with yellow Guides in 9, so I tried on the Rappel in 9 and it was much better.  I put in a Foot Shox casual insert and they are like a dream.  The arch is now in the right position - as long as the insert keeps my foot from sliding forward (which it does).  They - just as my size 9 Guides and Leaders - are a little too long, but it doesn't bother me in the shoe, and I doubt anyone's really going to look at them enough to notice.

UPDATE #2:  Wore them to a school function for 2 hours (standing/walking, no sitting) and my feet cramped up.  I've listed these for sale used on the Fluemarket.