It depends on what you want to see and how well you want to see it. There are a few 12M 360° cameras that dewarp the defined views and provide clean crisp video. Each of the defined or used views becomes a video feed at the server or NVR. I recently played with such a camera from Aventura, that also had built is IR. For what was being done it performed well.
A few years back we actually designed a custom mount that housed multiple mega pixel cameras so the IT drop was all in one place and the views over lapped. This was great in very busy rail yards where the cameras were on the corner of a building. The area covered was from wall to wall around a corner 100% coverage all the time for about 200ft out from the base of the building (before there was an obstruction).
The Q6000 fixed cameras are about 1M so if your camera is on the second floor of the building your digital zoom will be limited but your situational awareness should be good for about 100 ft. It depends on what you want to see and how well you want to see it.
Is that the highest resolution picture you have of the Hik?
It's looks like DS-7xxxxxxx-4, but it would be easier to poke around with the full part#. Plus the part# might tell us more about its capabilities.
Btw, there is this from Geovision:
I asked Geovision about this months ago, still no response, so not sure if or when it is coming.
Also, here's more from Hikvision China on the 'Eagle Eye' PTZ/Panoramic.
You weren't kidding about learning Chinese.
8 panoramic imagers! Ominous looking awards!
Not understanding your entire objective; you may want to consider the Aventura 360° 12MP camera. It will dewarp the video into 4 very clear, crisp views that are recorded separately and a fifth view of the circular top view, you have the option of how they are configured or not using them all.
Is the axis-q6000-e recommended for city surveillance proposes? I think it's a good option for a 4 fixed/1 ptz configuration.
The Hikvison alternative is available right now?