Bit of an update: the thing has got black spot now (midwinter/subtropics).
Not too badly. It's more resistant than Mr. Lincoln and Peace, for what that's worth, but as far as I can tell at the moment it will require the occasional treatment to help it along.
Note that I am not a fussy gardener. I do not obsessively remove diseased leaves from the plant and from the surrounding ground. Life is too short, and the garden is too big, for that sort of silliness to be sustainable.
Just noticed this question, years later. The answer is no, and I don't know what root stock it is on. It's still surviving though, with hardly any care, and still sprawling, and still smelling great. I'll try to give it more care this year.
Can't say I agree with the description page for this rose: "Tall. Dark green, leathery foliage. Height of up to 39" (up to 100 cm). Width of 20" to 2' (50 to 60 cm)." 1 metre is hardly tall. I'd call it quite short. Also, a width of 20" to 2' is a joke.
Mine has finally settled in and started to take off. It's about a metre tall now, but about twice that in width. It seems to throw out long arching canes and it's growth can only be described as sparse and sprawling.
Disease resistance is ok, but nothing to write home about. It survives without a lot of fussing over but looks intermittently ratty, with fairly sparse foliage and moderate amounts of blackspot (cue yellow leaves and all the rest of it). Overall, as a bush, it's about as elegant as your average Lincoln, with the difference that it does sprawling instead of scarecrow. It may be possible to keep it pruned to a dense and compact bush, but it's not one by nature.
However, the flowers do smell fantastic. I'd say it's one that would go well with Lincoln in an out of the way cutting bed, where you don't much care what the bush looks like as long as you can nick some flowers every so often.
