The apartment has great facilities, very clean & modern. Air con is very good. Local mini market is really handy for the basics. The pool is lovely and quiet, 5 euros/day, 10 euros Sat/Sun. with plenty of sunbeds and brollies available . You can take your own drinks/food ( no glass ) or use the vending machines. There is a great gym just below the pool area, this costs 8 euros/day. There are plenty of bars, cafes and restaurants along the quay.
We hired a car and went to Gozo/Comino (foot passengers on the ferry, very cheap), Valletta, Sliema & Mellieha. Most trips out were under 1hr, buses are apparently very good but we used the car as there were three of us and no hanging about. One week hire cost 90 euros, no extra insurance was taken as 17 euros/day extra. Driving was fine, no problems, was expecting worse roads and bad driving, but found it great, on the left too! I thoroughly recommend the apartment and Marsaskala if you like a quiet/relaxing holiday.