Last night we were out comet watching. Unfortunately, I don’t have good enough camera to capture an image of the comet, but just a bunch of us watching it! This link will give you a better idea of how dramatic this was from NZ.
As far as I know, the comet is about 300m across with a tail stretching out over some 2 million miles.
The last comet I remember watching was Hale-Bopp in 1997, from a garden in Bethesda in Wales. However, I seem to remember needing a telescope to see anything at all!