This extension is great! I was always getting distracted by the news which would be followed by a deep depression about our state of affairs. It's nice to be forced to think about what I am doing on my computer every once in a while. The only problem is that it blocks some interesting websites. I'm in college right now, and I have been noticing that some websites just won't open. I just brushed it off for a while until just now when I was trying to submit some homework to a website and it just would not open. I had an epiphany and disabled the extension, which solved the issue. Honestly, I consider it a minor inconvenience just based on the time that the extension has saved me over all, but I wanted to make a note for anyone that may be noticing something similar.