Absolutely wonderful appartment! We had 7 people and there was plenty of room for everyone; we fit quite comfortably.
Location is great: you can actually see the beach and the connection with center is good (via bus). It is only a couple of minutes walk to the beach and there are great restaurants there as well.
The facilities in the house were great and in good condition. The whole decore was wonderful as well; it was really tasteful.
Ignacio was the perfect host and responded quickly to my questions prior to our arrival and during our stay.

I highly suggest the Blue House if you are making a trip to Barcelona with bigger company!