I put in 4 Star of Nile roses in June of 2005.  They were small but bloomed nicely and steadily in the first season.  They have survived a Colorado winter with haphazard winter protection, and now are showing lots of new basal shoots, and lovely mahogany colored leaves that turn to green.  I did not see any disease last summer, although we get powdery mildew and many of my roses suffered from various leaf blights due to a cool and wet June.I will say the color is more of a bright pink, like John Cabot, but the scent is lovely and I have high hopes for this rose.