After 4 years of evaluating this very widely available HT, I can see why it's lasted through the years when others have faded away, once the newness and 'hooplah' has worn off. Perfume Delight is definitely one of those which should be in the Novice Class of HT's. It's one of the most carefree, easy to grow, non-finicky growers. Another which grown on it's own roots is proving to be quite a valuable rose for the no-fuss garden.
I can say that having both bud grafted and Own Root specimens, the OR is definitely noteworthy in comparison to it's much less vigorous BG counterpart. It's decent to root, and certainly grows superior on it's own. I've also noted that even in my no-spray gardens, the blackspot is almost non-existent when grown on it's own roots, as opposed to the BG's lack of that quality. The fragrance is also stronger on it's own roots (I've noted this in nearly every comparison). It stands up to full sun without hesitation, yet takes a bit of afternoon shade with stride, and doesn't yellow. It has little dieback, which means earlier and later flowers. Bloom style tends to be more sporatic, and does not tend to flush. There are other similar deep pink HT's which tend to bloom more frequently, like Pink Peace, but doesn't have nearly the depth of fragrance that this does. Though not very numerous in my climate, I see random flowers from March until December.
If possible in your region, this one is very worthwhile to grow on it's own roots.

Perhaps my favorite deep pink rose. ( It's borderline between that and medium imo. ) Perfume Delight is a rugged disease free plant with large smelly blooms that repeat well and stand up to heat and wind. It's also a neat rather upright grower, but does not get a case of bare knees. Pretty low on thorns too. Did/does well in both New York and Arizona for us.