I used Altra Lone Peak 5 on the CF - if I knew what I know now, I would have replaced (with the identical shoe) in Leon. By the time I got to Ponferrada I knew I needed to change them, but I was walking through on a Sunday, so nothing was open. I really wanted the same shoes, and Altra are not so common in Spain. I kept on - by the time I got past Sarria every step was painful as all the cushioning had gone and in the end I found a shop selling Merrells which I bought and carried on with (but the damage to my feet was done).
Having said that - I am rather hard on my shoes. I saw other people with the same shoes, and although they had issues with the uppers and loss of tread, they went the whole distance (800k) in them.
Next time, I'll either arrange for a second pair to be picked up over halfway through, or make sure I plan ahead better...
I did like the Altra Lone Peak though, they just weren't hardwearing. I should have guessed, as I went through a pair in recreational/training walking in a couple of months, and then got a new pair to start the camino with.....