Its free tier is broken/limited to a single country in places. It forces you to login and to accept a horrible spyware-like user agreement that allows them to record everything you do. Its UI was kinda clunky, but now it's utterly horrible from the most recent update, literally opening a webpage every time you connect, and they even removed options to disable notifications and configure stuff.

And who are these people who give this stinking pile of crap 5 stars without leaving any comments, paid shills or something?