+ Transparent suction cup, does not take too much space in optical claim
+ Suction cup holds (if one takes into account the physics: on smooth tiles with proper cleaning) excellent
+ Metal bracket looks very classy
+ Easy to clean
Interesantes detail: I use Zanbürstenaufsätze type Oral-B Precision Clean and Sensitive. If you hang the brush with the bristles forwards into the holder, the probability is high that they fall out at a light touch. If you raise the brush slightly and rotate it slightly to one side, they remain fixed in the holder. :)
Strong buy recommendation!