I got an own-root plant from Roses Unlimited last year. Today I saw my first bloom, whose fragrance I would describe as moderate to strong and very fresh and pleasant (I'm not experienced enough to be more specific than that):

Aphids were swarming all over the plant earlier, but I did very little about that issue. The plant must be very hardy and strong, because it didn't seem to mind the insects feeding on it a bit.

There was a little blackspot on the lower leaves. It hasn't spread. I sprayed a little organic fungicide (Dr. Earth's and a homemade potassium bicarbonate mix) to help, but that's it. I hope Roberta Bondar will be disease resistant in my garden.

I learned about the rose from Brad Jalbert as Select Roses, who described it as " the best small yellow climber I've ever grown." See http://www.selectroses.ca/roses-performers/single-gallery/8525655

The choice of a yellow climber came down to Roberta Bondar and Kordes' Golden Gate. I chose this one because I liked the photos of the blooms a bit more, expected the blooms to be more fragrant, and saw it described as disease resistant in this thread: https://www.houzz.com/discussions/yellow-fragrant-short-climber-disease-resistant-dsvw-vd~1615599

Here is the Help Me Find entry: http://www.helpmefind.com/rose/l.php?l=2.5232