On our tiles the power hÃ'lt properly. We had to degrease again, since keeping the SaugnÃ'pfe even if the network is up to the top packed with bath toys. Our tiles are not quite "smooth as glass" - but I think that the SaugnÃ'pfe on something rougher UntergrÃ'nden not right stick (like all other SaugnÃ'pfe just as well). The network is largely sufficient to accommodate the entire bath toy, it can be easily removed and the toy dries through the net after bathing and thoroughly. CONCLUSION: FÃ'r smooth tiles a clear buy recommendation!