It was important to go to the showroom and see the different models. The Acorn model was good but extended into the walk area on top of the stairs. The Elan from Bruno had an adjustable seat and a rail that did not extend into the walkway. We were able to ride each model at the showroom and make our decision to choose the Elan from Bruno. The installer was very helpful and explained everything about the model. He listened to our questions and showed us how everything worked.