Erich was straightforward and easy to deal with. He gave good hints on things such as transport SIM cards etc. the apartment is great value. Close to important sites and with the u-bahn a few steps away. The apartment is well equipped and comfortable. The wifi access was seamless. There is a supermarket close by adding to the convenience of the apartment. We had a wonderful time in Vienna and the convenience of the apartment contributed to that. Thanks Erich.