Eva und Michi's place is AMAZING! I highly recommend staying there for anyone visiting Vienna. The apartment is very cute, with everything you could possibly need (umbrellas, washer dryer, shampoo, etc). It is very centrally located, close to public transportation, and a great place to relax after exploring Vienna. The neighborhood is really nice, with lots of good restaurants, cafes, and shops to check out -- it's also just a couple of blocks from the big market.
Eva und Michi were amazing hosts!! They offered many suggestions for things to do, were extremely responsive, and even left a bottle of wine. Could not have asked for a better experience.