We had a decent stay at Jordi's place in Barcelona. Ramon (our host) provided great tips on a great tapas place down the street, and a decent churros place nearby. However, upon arrival, we were surprised to learn of a €30 surcharge because we arrived on a Sunday. I've stayed in numerous airbnb's, and this is the first I've ever encountered this. Turns out it was in the fine print, but it should have been stated more clearly up front (perhaps a flaw of the airbnb website).
The apartment is in a great location with easy walking access to the metro and many tourist locations. It is on the 1st floor without an elevator, so not too bad if you only have a handful of luggage to lug up. Inside, the apartment is clean with 3 nice bedrooms with pretty comfortable beds. We were disappointed that we couldn't find any soap, shampoo or laundry detergent inside. Good thing we packed some soap and shampoo with us, but no laundry detergent meant hand washing our clothes (we didn't want to buy a large amount of laundry detergent for just 1 or 2 uses). Apartment was relatively quiet, considering the location, with the exception of 1 or 2 loud neighbors (sounds like they were tourists, too, so this could change depending on who's staying nearby).
Overall, it worked out well, although there's still room for improvement.