Avoid mediafire. They literally ghosted my account. I was able to use my account and download stuff normally but after changing IP i realized it's showing blank page. I had 1 file removed prior to that. That was pretty low from them, so i recommend to go with others. Best way is to change links every now and then where ever you host your files.
I use Mediafire (free version) and it is working fine for me currently. There is a lot of spam on the download page that i tell my traffic to avoid though. I'm sure some of them click the wrong link and bail.