This add on is light and very feature rich. I love having multiple types of block categories, which I use to either block permanently, whitelist only on certain days, or to allow overrides which are very helpful. Overrides are awesome, for example, if the answer you're looking for happens to be on reddit or youtube, which happen to be two of the biggest timesink websites out there. I think there could be finer grained control over the blocking of date and time, but its more than sufficient for how I'm using it. I would highly recommend this addon to anyone who wants take back control of their attention from tech giants and their algorithms.