Oscar's is a lovely and tastefully furnished apartment in a historic building only a few minutes' walk from Martim Moniz square/metro station, which is also the starting point of the world famous tram 28. Although very central and close to pretty much everything, the apartment is quiet and the guest bedroom is tucked away from any street noise. I had a great week in Lisbon (time just flew by) and can't praise Oscar highly enough as a host. I would definitely come back!