I've updated this review, after a months use. I haven't tired of manually grinding and have been charmed enough by this to buy a second, and to write a more detailed dedicated review here with both French Press and Espresso. Also has detailed photos and timings of the different grinds. You can read the update here.
Click Here (blog.thinjetty.co.uk)
Shipped directly from Japan it can take a while to arrive, but very pleasantly surprised. I paid £18 and it seems to be very nicely made. It is really compact, which means it perfectly fits in a shelf, the handle just clicks off - so it uses almost no footprint in the kitchen. Beans go in the top (securely enough), and the cup at the bottom collects everything neatly and has approximate graduations which you quickly become able to judge how much to do with minimum effort and coffee wasted.
The main thing people warn about manual grinders is they take a lot of turning. Exactly how much is not very clear from many reviews. So for the amount of coffee I need to grind for one double espresso in my machine, on the finest setting for this grinder, it takes me 2m 25s, ensuring a nice smooth action to get the best grind. At this speed this leaves my arm tired, (like whipping cream manually), but me not out of breath, although slightly more awake.
On the finest setting (click positions not infinitely adjustable) the grind is very nice. Very even, and good texture. Much better than my previous electric burr grinder.
Practically (and I think this might be a winner for me) It is much, much quieter than an electric. My work means I regularly leave at 05:00 and putting the electric grinder on wasn't fair on my better half, or the baby. Whilst not silent, this noise is definitely not an issue for anyone outside the room - I just need to budget 2 minutes of grinding rather than 20s.
Lastly the intangibles. I really liked doing the coffee this way. I felt involved, it's a nice hands on object, it made a measurable difference to the quality of the coffee, and it really didn't cost very much.