So, despite all the negative feedback in the other threads, I decided to try out the cam, especially since there is really no other option for a reasonable 180 degree outdoor camera on the market.
Powering it up, I used the D-Link Lite app to connect and set it up initially. All went smoothly.
After that I went to the web interface of the cam to set up some specific parameters and to play with the settings. What I immediately saw was that the interface looked almost identical to my DCS-2332L cam, with a few additional options and Preset being removed. The following options were added: WDR levels (think HDR of D-Lighting) in the Image Setup; in the IR Light they added a drop down, allowing to control the intensity of the 4 IR leds.
Seeing as the interface of 2670L look like 2332L, I tried adding it to DCS-100 DViewCam using that (2332L) profile, and it worked - with both video and audio!
One of the other things that I did was upgrading the firmware to 01.10.02. One thing that didn't work was turning off the IR lights - they still got turned on when the camera switched to the night mode.
This seems to have been fixed. I got prompted to update to 02.00.02 from the mydlink website (even though this version is not listed in the download section of the camera's support site).
The image quality is quite good for such a wide angle. Comparing the 180 degree 1080p 2670L to the narrow-angle 2332L 720p, I see fewer detail. Look at the comparisons of a lawn ornament taken with both cams from about the same distance.
https://imgur.com/a/7tLtdz1One compares the the same zoom level, and the other zooms so that both images have the same scale. Fine detail (like the clover flowers) is gone in 2670L, still overall its a good image for a camera that covers so much. And good that D-Link did not make it a 720p cam, like they did with 960L (the heir of 933L).
I have not seen any flicker problems. My experiments with the Image setup gave quite good results using the following presets: Outdoor and Moving and denoising turned off and WDR set to 1. In Custom mode, I zeroed in on shutter speeds 1/2000 through 1/25. The 1/2000 speed is something new in 2670L, compared to 2332L, which had only 1/1000 and 1/10000 to choose from.
So far I've been testing 2670L through the window, and have not tried mounting it on the outside wall. Here D-Link mad a few engineering bummers with the connectors. According to my calculations, I'll have to drill an at least 21mm hole in the wall to thread the Ethernet contact, while bending the power contact back. an alternative would be to thread only the power cord through the wall and leave all the contacts on the outside. But here there is also a design flaw - the contact at the end of the power cord is, for some reason, angled - so a rather wide hole would still be needed. One final option is to cut the power cord, thread it through the wall and then re-connect it on the inside using some clips.
My final peeve was the lack of 5GHz radio. I may be able to circumvent it by connecting the cam to an old dual-band router in bridge mode.
I'll come back to this thread once it is mounted and I've had it for some time.