I can't recommend Helena and her apartment highly enough. Helena was incredibly nice, helpful and extremely communicative and she gave us lots of recommendations for the neighbourhood and the city. Her apartment is located in an extremely convenient location -- it's quiet, bright and big, and within easy walking distance of most of the city's attractions. Her rooftop patio is also a wonderful place to have a drink or eat breakfast with a view of the city. Helena was also very accommodating with our departure -- we were running a bit late, and she very generously allowed us to leave our things in the apartment before we headed to the airport. All in all, the apartment was a wonderful home base in order to explore a wonderful city, and Helena was a great host.