Its a great size, not too large nor too small, the cleaning brush is great and useful. Cuts cleanly and doesn't bite. I mainly use it for my beard.
Two things I find strange about it - is that the cutting head runs a little warm, almost hot when using it, no clue if that is normal or not. Secondly, I dont believe it says anywhere, but it chargers via a usb cable which i found odd and a bit funny, I guess if you were to plug it into a usb port it would charge at 5watts and 2amps, so I suppose you could travel with this quite easily.
Only thing that bugs me is that the attachments dont come in a separate plastic tray so unless you want a draw full of of cutting guides you have to keep the large plastic tray somewhere, i'll try cutting it down to see if that helps a bit.