Shirley Bud Builders are ones who continue to make buds and the scape becomes taller and taller as it does this. When you think you see all the buds suddenly there are more coming.
This is not an unattractive bloom and with that many buds and it appears to make scapes easily, I would take some very nice blooms you like to it and try to get the plant habit into them. It may prove to be a very valuable bridge plant, This is exciting to have such a great plant.