Julian and Anne's home is indeed a great one for a short stay in Vienna. The location of their house is perfect as it's only a few mins away from Naschmarkt (which I thoroughly enjoyed and highly recommend for a visit) and is close to many quaint and authentic cafes as well as supermarkets. Major attractions are too within easy walking distance! Their house is in a secure building which meant a great deal to me as I was travelling alone and therefore, never had to worry about walking till it even after dark.
Julian and Anne are themselves a very cool couple from Germany. We even got drinks together one night! They are awesome people and I feel like I've ended up making new friends in Vienna. So, book this place stress-free because I'm sure you'll enjoy your stay just like I did.