Had a great stay at Paul & Dan's, apart from a few minor things that were quickly addressed (keys not available at check in time as cleaner wasn't finished and TV remote that I thought was missing ended up being under the couch cushions!) Any questions I had were quickly answered, communication was great!
Location is great, close to Southern Cross and tram/bus stops. If you're a light sleeper the noise in this location might be a bit loud at night, but I bring ear plugs when travelling which blocked most of it out. Couldn't hear anything from other apartments though which was great!
If you're tall the beds might be a bit small (I'm 5'3 and when stretched out my toes were at the end of the bed).
Building amenities were good, we used the lap pool and sauna but at time of stay rock climbing walls were still closed (didn't plan on using so no drama!)