Close to the Congress venue, so perfect for my needs. There are many little restaurants and bars around, again perfect for a quick bite at the end of the day!
On the downside, I had communicated my flight arrival time well in advance, but Host was not in. I had to wait 3 hours to get access to the room and my chances to see a bit of the city were gone! Simon was very apologetic about it all and offered some compensation! The apartment is on the top floor next to a busy road.. I had trouble to get a good night sleep; and who knew that the bins are emptied in Madrid at 01:00 AM in the morning?
Overall, decent value for money