Easy check-in, the appartment was easy to find because of the good descriptons provided by the host. For me a big plus that you can check-in whenever you want because its equipped with a key-box, so you are flexible and dont need to arrange a time to handover the keys. (i had this sometimes in the past which is very annoying) It is super central, only a short walk until you reach the Mariahilferstraße. Also all means of transportations are easy to reach from here.