The image is realy clear and sharp, look on Youtube for examples. At the night, you have to use IR light, becouse otherwise it doesn't see anything. But it is really hard for storage, becouse the record takes cca 40GB/Day.
Look on eBay, there are better prices. And I think, this ,,turret´´ type is better than ,,dome´´ http://www.hikvision.com/en/Products_accessries_755_i6107.html
Becouse the IR LEDs in the ,,dome´´ type reflects the beams in to photosensor.