This is a wonderful place with very helpful hosts. The location is central. The subway station is just across the street, as is also the bus station for the hop-on-hop-off tourist buses in case you are only here for a short trip. I had a lot of time (10 days), so I pretty much walked everywhere. The Archeological Museum is only 15 minutes walk away from the appartment. The appartment faces a busy round about which can be noisy on the balcony during rush hours but the flat has good insulation so it is not noisy inside, and outside of rush hour it is really nice to sit on the balcony.
One last thing: I recommend to go to the "Bread Factory", just across the street. They have everything from bread, warm traditional meals (also for take-away) and the most amazing cakes and deserts. Enjoy!