We stayed in Il-Qrendi because we were visiting friends, but would recommend it as a quiet base especially for exploring the south of the island. The village has enough local shops & amenities to keep you going and there is a large supermarket (Lidl) a short drive away at Safi. The locals were quiet but friendly.
The apartment is beautiful and spacious (no camera tricks) with a well equipped kitchen, comfortable sitting & dining area, two large double rooms and a lovely big bath. The terrace has great views and catches the afternoon sun.