It is very good for a cellphone, possibly one of the best by any phone on the market.
But looking at it objectively, its meh. Reshoot that video using a prosumer HD video camera with a real lens which gathers significantly more light, and that HD video would look orders of magnitude sharper, and with significantly improved color.
So I guess what I am saying is, even if you are an amatuer, but you want to take good video, get a dedicated videocamera sporting a real lens, zoom, and sensor.