I have the Miele 216-3 (same as the 217). I found that suction setting greatly affects how delicate (or not) it is. Lack of height adjustment is a problem on the medium to high pile carpets. It has fixed "low pile" height setting so on the higher pile carpets it dive to the carpet and carpet fipers suck in to the brush roll.
Reducing suction helps this issue alot.
Sorry for posting video again, but this is close up what I mean on the full suction.
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