I agree with the vibration keeping it clear all around. When I slowly turned the pedals by hand and placed my hand on the glider I could feel it in contact with the chain, but I guess at a little speed this would not be the case. Quite clever really.
So how often would you oil the chain? And when fixing a puncture is it a pain to drop the wheel out?
I've oiled my chain once or possibly twice in about 2,500 miles.
Even then, I don't think it needed it because it still looked moist and gunky.
Running an all but enclosed chain is different to an open one.
However you look at it, much less oiling is required.
If I waited until the chain looked dry - as some cyclists do - I reckon I would be waiting for ever.
Fixing a puncture has proved OK on my bike, it's possible to lift the chain and Chainglider off the rear sprocket 'as one', or more correctly, it's possible to get the released wheel out from under the chain.
In some ways the Chainglider is better because there's less chance of oily fingers when mounting and dismounting it.
The second time, I managed to hook the chain over the sprocket without touching it at all, although it's quicker to use two or three finger tips to shape the chain for mounting.
The rear part of Chainglider is a C-shaped piece which comes away fairly easily, so that would give easier access to mount the chain on the sprocket.