I'm glad you asked, Sharlene. Golden Zest is one of the best roses in my garden. The rose bush has a pleasing shape, the blooms are gorgeous, and it blooms quite frequently. I'm glad it's available in Europe. It has been increasingly elusive here ever since Jackson & Perkins started having financial problems about 10 years ago.
It does get black spot, but so does almost every other rose in my garden, and it's no more susceptible than any other rose in my garden. In my garden, the rose leaves emerging after our long rainy season in winter invariably suffer from black spot. I once made a list of the roses that were resistant, but I had to keep crossing roses off the list as time went on. The last roses remaining on the list were Ralph Moore's 'Playboy' and a few of Ping Lim's roses. Fortunately, the black spot never kills or weakens any of my roses. They lose their leaves, grow nice new ones, and sail through the rest of the year without any relapses.