Martin's place is perfectly located, both near a metro and also a lovely 15 minute walk along a quiet canal to the centre. The room has a single mattress on the floor, and a double mattress up on a mezzanine in the same room. Martin was lovely, even made pancakes for us in the morning, and gave us some good places to eat.
TIP 01 - if you are travelling from Budapest and Bratislava, then take the river!!!
TIP 02 - if you are flying out with Austrian Airlines then use the CAT express to the city because you can get an online discounted ticket for 10 Euro, you can check your baggage in at the station in the city 24 hours before, and then chill in the city till you need to head to the airport.