We were visiting Aarons place for five nights with a group of four people and it is exactly as described. A huge balcony which offers incredible open sea views, a spacious living room and a general very clean apartment. If you are traveling by car I would recommend the offered underground parking since it might be difficult to find parking lots on the busy streets of Sliema. The location of the accommodation offers everything what you need just next door (supermarkets, restaurants, bars or the ferry departure spot if you want to visit for example Valletta).
Thanks again to Aron and Paula for the good communication and being part of a memorable stay in Malta.