I wasn't sure that I really needed a coffee grinder as there is some nice ready ground coffees out there. But having used this one for a couple of weeks, there really is no going back, coffee is so much more enjoyable.
I rarely find that something I buy is perfect, but I can find no fault with this grinder, it exceeded my expectations greatly. It effortlessly produces the grind you desire in exact quantity you specify.
There is a slider to select how finely you want it ground with digital display and another to select quantity, I really like how it counts down to zero as the set amount is dispensed.  There is even a sealable container to fit snugly underneath if you want to grind a whole load at once.
I like to switch to decaf in the afternoon so I just put enough beans for a couple of cups at a time, or you can fill it up as has an airtight lid.
It's not very noisy either.
A beautiful looking machine, a joy to use