We had a good stay for 1 night at Dominik, the apartment is at a convenient location, 1 metro stop away from Westbahnhof. Dominik seems to be a nice person although we haven't really got chance to get to know him during our short stay. He explained how we get to the place, which is a bigger apartment with a lot of rooms, so you will share on the facilities with other guests too - but we didn't have to queue for the shower or anything, just worth noting it :) The showers could be better, but altogether it was a value for money stay.