I see someone already answered, but thought I’d chime in.
I like them a lot. They look good with the chrome theme LTZ. I’m about 220, and they seem plenty sturdy for me. The chrome edge ties into the chrome door handles, window trim, and mirror caps really nicely. I took a chance ordering them because the Ionic 51 that I wanted was out of stock, so I chatted with Running Board Warehouse, and they steered me toward the 41 series.
Edit: You can slide them in or out to your preference. I have the driver side tucked in more than passenger side. I’m still trying to decide which side I like better.