We had a great time staying in the apartment. Just like advertised the apartment is in the heart of Alfama and less than a minutes walk from the 28 tram.
Ricardo met us at the apartment with pastries and was very helpful with our questions. The apartment is perfectly located being close enough to walk to a number of sites as well as close to a metro/overground station (Santa Apolania).
The only draw back i can think of was that the tram 28 is quite loud in the morning but all in all i would recommend this apartment and would definitely stay there again.

Thanks!