This apartment (no. 3) was exactly as described and good value for money. Small but airy, with everything needed for a short stay. Perfectly situated for exploring Valetta and Floriana with excellent bus links less than 5 mins walk away. The apartment itself was quiet and clean. Note that if staying in apartments 2, 3 or 4, there are some pretty steep stairs if you have suitcases. Apartment 3 also has a steep wooden staircase to access the bedroom area. The bed was very comfortable, with a foam mattress. I'm fussy about getting a good night's sleep and I slept well every night. The space was just right for two people. The bathroom was spacious with a big shower. The rooftop terrace was a bonus, I seemed to be the only person using it for getting some sun! The area was quiet, yet very close to buses, a couple of small local bars and three small grocery stores - not supermarkets, but good for essentials and very friendly. The walk to Valetta (city or waterfront) took around 10-15 minutes.
Ian was a very good host, explaining everything about the apartment, Valetta and Malta in general in advance with good instructions about locating and accessing the apartment, and replied quickly to questions.
I would recommend this apartment as a good base for exploring Malta (but not ideal for anyone with restricted mobility, due to the typical Maltese narrow doorways and amount of stairs).