it has worked for me but what I did was a took a stem that hadn't flowered and still looks quite new and only just turning woody. I cut lengths about the size of a pencil. strip any leaves off and stuck the stem into a slit of soil in the garden. I put a spade in to full depth leant the spade over so it opened a gap, slipped the stem in put the spade back upright and removed it. then firmed the gap up with my heel. leave alone and check for signs of growth in spring and if lucky they will be ready to transplant next autumn.
well that's the way I did it and I have 2 rose trees as a result. many didn't survive if I am honest.

Hi, this is the way that I would use, and which has been very successful when I grew roses in the past, and if your soil is clayey, put a layer of sharp sand or horticultural grit in the bottom of the trench, and make sure that the end of the cutting is in contact with it, and also if you're going to take more than 1 cutting from 1 stem, cut the top part at an angle, and the bottom part straight, so that you know which part is upright, Derek.