I have used a few no-names and then some Volta ones. They are pretty good for charging and I've also used them for wireless mice or wired keyboards that traveled around a lot.

They work pretty well, I wouldn't use them if I needed to transfer any data but I guess you could.

They will break if you dropped your phone directly onto a metal floor, but my phone was fine, so that's nice.

They may also get little bits of magnetic debris attached to them, which will eventually stop them from connecting. You can brush that off with a toothbrush fairly easily. Might not happen if you aren't working in a machine shop.