In general, I find the V2 is much more reliable and dependable as a general surveillance camera.
The WCO seems to require a longer period of motion before the logic decides to generate a clip. As a result, when a clip is generated, the motion is missing about 5 seconds. The net result, about 40% of legitimate motion is not captured that a V2 does capture. Much of what is captured is towards the end.
In contrast, the V2 clip starts just before the motion that triggered it, or close to the beginning. In very few cases does it not capture motion as expected.
This feature does not seem to matter on the WCO. Unless the motion is in the PIR Effective Area, I see no difference. The only time this seems to work is if I am in Live View.
On the V2, this helped eliminate reflections and glare that had been triggering clips. For example, I blocked out a section of my window that previously picked up reflections from inside the home.
The WCO uses a lot of battery to handle motion detection. Also, the battery does not handle cold weather very well.
Placing one WCO inside, facing a wall, the battery showed almost no drainage over several days. This same unit had been over 4% daily, even worse in the recent cold weather. In the warmer months, it was 2% daily.
Adding another WCO a few days ago, in freezing temperatures, the consumption is 4% average. It it about 2% with no motion going on. As activity begins to increase, consumption worsens.
My next step is to place my older WCO outside again. The battery had become unstable outside, just a 24 hour lifespan. It also was only generating motion clips about 5% of the time there was motion for more than 5 seconds.
My general thoughts are: if I am comfortable adding an outlet outside, I would like to see if a V3 works best there.