This house is very comfortable and would be great for 3 couples or a family. I stayed there with my college-age son and it was plenty of space. The pool and jacuzzi in the back yard are amazing. The beds were VERY soft, literally like a pillow. I found them too soft but I know many people would love these beds - my son did. The hosts are wonderful - very responsive, left clear instructions, made it easy to park and find good local restaurants. I highly recommend this house.
Also, the location of the house seemed pretty safe and it was generally close to lots of good restaurants and museums. The only hesitation I have about the house, is that the highway was literally one block away and that was a bit unnerving at first. Surprisingly - with the air conditioning on - I didn't hear a lot of traffic noise, so if you don't mind seeing the highway and some of the street life under the viaduct, it shouldn't be a problem.