I have been using the Salewa Firetail boots for at least a year, and I have tried on the ArbPro 2 boots, but returned them. The ArbPro boots are very well made and a better quality boot than the Firetail, and I suspect that they will last much longer. But I don't have the experience with them to know that for sure. I returned them because they felt too rigid to me, and I don't like the higher tops around my ankles. For some people, that may be an advantage. Perhaps once they are "broken in" they will be more comfortable for walking, but I don't want to have to break in a pair of boots. In the tree, however, the rigidity of the ArbPro boots is an advantage when standing in a crotch. The Firetails flex too much and let the branches squeeze my feet. But whatever we all have to say about either boot, we're all different, and you won't know if you like them or not until you try them.