With the soft brush to prima all smooth surfaces (eg. B. wooden staircase, wooden furniture, monitor / TV, glass surfaces, bath / shower tray, leather sofa, wallpapered walls or even Rauputzwände) can suck a large area, but also between crevices z. B. on sofa or leather armchair with the front part of the brush (second, separate intake) suck dirt. I do not want to give up the useful "helpers", with many a dusting with a separate cloth now omitted. Only with especially sensitive surfaces should be on the brush care not flat set up the whole area, because they can be fixed eye by the high suction force from time to time. Therefore, better keep a slight angle when vacuuming. But can damage or scratch to you with the brush no surface because the brushes inside the entire surface a velvety reference has.
The Flexi crevice tool with a soft brush and a pull-out flexible extension is ideal for in-angled corners behind furniture etc. to suck. Only in our car between the driver / passenger seat and center console I still need my very narrow universal attachment from old vacuum cleaners, because the Flexi Crevice front but is a little bit wider with the fixed brush attachment.
The Mattress not need or. When vacuuming mattresses or bed sheets on mattresses or mattress covers it does in any case their service.
Ultimately, I can therefore recommend the accessory to all who want to work a little easier when vacuuming or dusting itself.
By the way, we have a DC 29 and all accessories fit properly without the adapter plug.