I have been seeing Dr. Tremmel since 2010. Its a nice and modern practice in a historic apartment block in the 4th district. The receptionist /assistance is young but nice and always friendly. Waiting times vary from 5 — 40 minutes. Dr. Tremmel herself is very competent, doesn’t rush you if you need a minute, is very calming and you feel well looked after. So if you don’t like going to dentists, she is really good!!! Especially her main dental assistant who does all the hygiene appointments is really good as well. Your teeth might hurt a bit afterwards and it takes at least 30 minutes depending on the state of your teeth, but boy is it worth it. Your teeth and your mouth is so clean, feels like new ;) Only downside, its expensive :(