I have received the grinder - and used it as an excuse to have a 2nd cup of coffee.
I can say that I am pleased. It does grind to a very fine coffee (the setting it arrives with) with an adjustment knob that allows you to adjust for a coarser grind. I will leave it on the fine grind though.
As far as grinding itself. The unit holds 1/2 cup of beans - which is how much I use anyway for 16oz of
water. I am not going for espresso, so I don't know the quantity you need. I played with the ground coffee and discovered that it mashes though, which I think is important for espresso. I was a bit awkward filling the unit as the measuring cup I was using was broader than the container. I ended up using a funnel and fingering the beans down the hole. I will master a less awkward method later.
Because the whole unit fits easily in 1 hand, the grinding was not hard, and not an aerobic event. It did take some time though, but that was to be expected. I would say less than 10 minutes, but I did not time myself. I also stopped a few times to view the progress of the bean grinding. It is easy to tell by feel and sound when you have stopped grinding beans. If you plan to wash it in water after each use, forget it. Plan on tapping it clean for a dry clean. I plan on buying a stiff artists' paint brush to clean it.
I most definitely can see using this on a regular basis. It stores easily in a drawer due to its compact size, but I can see the handle becoming lost due to the fact there is no way to attach it during non use. Actually, keeping the box and storing it there if your use is just for when the electric is out would work if your planning to use it as a back up. This won't be a problem for me since I plan to use it daily.
If I were to give this a rating between 1 being horrid and 10 being exceeds expectations - I would give it a 10.