I got asked whether hand burr coffee grinder "makes sense" as to the time and effort you have to give in order to make your fresh grounds.
Well, it certainly takes longer and it can be exhausting, if you are grinding for more than 1-2 coffees. For me, grinding with Hario Skerton for 1 coffee takes around 1 minute, for 2 coffees 2 minutes (hands get a little tired). So, I wouldn't recommend a hand grinder if you plan to do a lot of coffees at one time, but for 1-2 at once it is a good option. It is also much more quiet (if you are grinding in the morning and you don't want to wake anybody up).
Hope this helps.