I’ve used the mag chargers for years and really love them. The little metal lug can feel a bit odd, and I had to clean metal shavings off it when I did fab for work, but it’s all around great to use. It basically turns your charging cable into a coaxle cable, so it can’t do data, but the cable can spin freely as you charge and can be magneted to other things when you aren’t so the cord is easy to manage.