Door-stop with magnet… any good?

[Adsibob]

Thinking of fitting something like this, to prevent damage to a perpendicular wardrobe door that is adjacent to our bedroom door, whilst still allowing us to fix the door open to facilitate a cross breaze at night. Anyone have any experience of using such items. SDS and ironmongery direct make similar. They seem like such a great idea, but what is the catch? 

 

 

Edited July 17, 2023 by Adsibob