[lyndonh]

> I don't need to worry about some app stealing my private files or similar

This is highly unlikely. But I estimate a probability of 0.7 that you don't have notable security protecting your computer and your top secret files, even though your machine is on the net.

> If it isn't good, I can leave a review that the author probably reads and cares about

Most (any decent) 3rd party software developers have some kind of feedback channel.