Absolutely terrible, I wish I could give them -11010010102002 stars. I have been waiting for 3 weeks to get the Wifi done. However, they messed up with my 1st appointment and blamed it all on me since I did not call them on time??? The second time, the guy came into the building and just left because he could not find the flat. Now, they are telling me to go into their OFFICE AGAIN and start everything from the beginning. NOTE: I signed the contract, they did not ask for any documents. Suddenly, after their 2nd mess up I need to provide something else and this is the problem - not the fact that their EMPLOYEE JUST LEFT WITHOUT RINGING THE INTERCOM. PLEASE STAY AWAY FROM THEM AND SAVE YOUR TIME. I will make sure to notify everyone I know so that can choose Yettel or similar.