Product review (2 stars): Hardly a "snap"
I have tight access to the back of my dryer.

I thought this may help in that regard by being able to attach to the vent host that emerges from the wall (which I could do - although it was hardly a "snap"), and then (I hoped) I'd be able to push the dryer up to mate with the plastic elbow.

For me it didn't work out. It would need a micro-person to be back there and push the elbow onto the back of the dryer. No better than a traditional / cheaper metal elbow from my point of view.