Jutta's place was perfect - very close to the subway station (less than a 5 minutes walk) and the convention centre. It is a big, bright, well ventilated and super clean one bedroomer. She even set out a small welcome package of goodies. I arrived quite late on a Sunday evening and the pizzeria bang next door to the apartment really helped solving my dinner woes that night!
The only thing to keep in mind is that there is no elevator, so you'll need to carry your luggage 3 floors. But that's hardly a deterrent given the many positives.