Has anyone used portable chair lifts? We will be moving and have ruled out remodeling to live on one floor or installing a chair lift. My 80 year old sister with Altzheimer's experiences horrific pain walking or especially going up or down stairs. There are some times this can’t be avoided like doctor appointments, or most recently, to get a Covid-19 vaccine. I have seen one portable stair lift that can be managed by one person who can get trained (though ideally two would help). It tilts back and has two motorized attached tracks that allow it to slide down the stairs or ascend with assistance. Just wondering if anyone has used these portable assistance chair lifts or can recommend one. I am trying to assess their safety.