My wife and I stayed at Freda and Simon's apartment for three nights. The apartment is very modern, tastefully decorated and spotless. Both were there to welcome us, and offered lots of great suggestions for our visit to Belfast. Freda has thought of absolutely everything in equipping the apartment. Simon even set up Netflix although we didn't have time to use it.
The location is impossible to beat. A ten minute walk in one direction, takes you to Queens University, Ulster Museum and the Botanic Gardens. A ten minute walk in the other direction, takes you to City Hall, Tourist Welcome Centre, Clock Tower, Victoria Shopping Area, St George's Market. Belfast Titanic Museum is only a 12 minutes bus ride away. The grocery store is a 2 minute stroll from your front door, and there are lots of restaurants nearby. If you are driving, another real bonus is that the apartment includes a parking spot. We parked the car and did not use it for the three days we were there (parking in Belfast is pricey). In short: if the apartment is available, grab it! We would definitely stay there again.