We loved Mem's place a lot!!! :-)
It is close to the city center, very clean and cosy and it offers much more space than you would have in a hotel room. There were even some fresh flowers to welcome us.
Furthermore we enjoyed the peaceful atmosphere, since the flat faces an inside garden, which you can also use.
The flat was fully equipped and there was a big selection of shampoos, shower gels etc.
All in all we highly recommend Mem's place and would choose it again, if we travel to Vienna another time.