We enjoyed our stay at the flat. The location in the Lisbon city centre is very convenient with plenty of lovely cafes around. Flat has been lovely decorated and it feels very cosy and spacious. Air conditioning was working very well.
Unfortunately we were quite disappointed when made to decide after the booking between collecting the keys from the far off office or paying the fee for getting the keys at the flat.
We were also disappointed with dirty towels which has been kindly replaced...with the towel that was also dirty and torn. The shower base was duct taped and pans and pots very much used. It seems as if the flat was once a modern and fresh apartment but it looks tired and in need of some refreshing.
Overall, it's a four out of five stay.
PS
The stairs are indeed steep as highlighted in some other reviews, however they are definitely manageable.