Here in the San Francisco Bay area, it doesn't do quite so well. Based on its reputation elsewhere, I wasn't expecting it to rust fairly badly (and even get a touch of PM) here, but it does. It's vigorous enough that it outgrows the diseases during most of the year, but in winter and early spring many HTs look healthier in this climate, and HTs don't do all that well here.

It's still a good rose in this area, and it's never going to die from its minor sicknesses, but don't expect it to be unsprayed perfection everywhere.