Why a decent numpad is in not decent left place? Even if someone considers left-side numpad a big deal, it has to be mirrored to be handy for (touch)typing.
What's disappointing is that it's big but adds virtually no extra keys.
You can get to a very useful 130-key layout-- a second band of function keys, two more columns, and a knob-- by adding only about 5cm on each dimension compared to your typical 104.