The also contained ChamberSwabs (Look fabric sticks) I can hardly say anything because of the success of cleaning of the mirror box can be difficult to assess.
The sensor wall I have not used since a nationwide purge was not yet necessary. My review is only on the remaining supply.
In addition to this set is much like a bellows in the forums often recommended Giotto Rocket-Air bellows or an alternative to a embfehlen enema from the pharmacy, as a dry blow can make a humidity sensor cleaning may superfluous.