8x8 led matrix MAX7219 kit build and quick review

I have another toy! This time it's an 8x8 LED matrix driven by MAX 7219 through SPI. It came unsoldered, so after quickly putting some heat into it, I went on to experimenting with the Arduino skeches. First I searched and searched - and downloaded -then when I had something on display, I tried modifying it a little. Now I know more less how to drive this little gizmo. Really good quality PCB board and 5 components :) ebay listing here: http://www.ebay.co.uk/itm/291607807732