I planted this over winter, so my experience is limited - I'm in the outskirts of London, UK.
So far I have not been that impressed with Autumn, I was under the impression that she is very disease resistant and highly scented, but so far both claims have not been true.

She has not looked as happy as my other newly planted roses, most of which get less direct sun, nor has she been as generous with blooms, so far I have not been able to detect any noticeable scent and she has had mildew and rust.
The flowers have been utterly gorgeous, her 1st took my breath away - but sadly these fade & shatter very quickly - so much so that I currently would not consider using her in a bouquet.

However, in our recent heatwave - she did seem to pick up, looked much healthier and the blooms lasted a bit longer. Prehaps *fingers crossed* she just needs more time to settle in, but so far I am getting the impression that she is probably more suited to a constantly warmer climate.