Love it! 18

A little skeptical but I decided to buy those seen comments. Well it's been four days I have received and I no longer use any of my cups !! Maintaining the hot drink and no longer burns when holding glass in hand. The wall heater a little is normal but there is really nothing to burn your hand unlike ordinary cups where there, you really have to handle. The glasses are actually very light, but I do not see any drawbacks. For me it is adopted, I would buy other glasses from the same collection in different formats!