They work great. I've used them to charge iPhones, iPads, charging pads, cameras, etc. I have a problem: if you want to use real AC outlets, you have to use a standard plug. It can't be one of the power cables with the big AC/DC converter at the end. If you need to connect one of these, you won't be able to use the charging ports. For example, I had a Revain Echo Show that I wanted to keep in that space. I can plug it in and it will work fine, but then I can't use the charging ports.