Man how this one has taken off, when I bought my new 5th in 2016 (same year these started to be seen once and a blue moon) I thought they would be cool and had them worked into the deal. well 2 months later the stairs still hadn't showen up to be installed due to them not even haveing a proper part number for OEM ordering yet. so this gave me time to think about it and I decided a lot of what people are complaining about today would happen. ie. water, dirt, limited use in tight space and so on. so I went in and got that cancled and another solar panel installed as they were about the same price. back then everyone told me I was crazy and these were so nice... no it looks like I made the right choice.
Steve