I got this for my sister as a gift for her birthday so she didnt have to put a lot of physical effort into cleaning her home. Overdoing it with cleaning especially vacuuming can sometimes cause her pain to worsen and cause a lot of stress on her body. This vacuum works wonderfully its very innovative it cleans up extremely well it has a big filter and it picks up pet hair very well too. Its very easy to operate and you can schedule it to vacuum whenever you want. Its very quiet as well. It works great on tiles carpets and against the wall. It will NOT fall down the stairs since it has a great sensor built into it. So thats something you shouldnt worry about it.