This was our first time using airbnb and the experience was wonderful. Martin's place was exactly as advertised. We called him when we arrived and he came right over to let us in and show us the amenities. He had even brought over a toaster oven because the oven was being quirky--not that we cooked at all, since we were on vacation!!
Martin's second rental unit is right next door. A lovely family from Barcelona was visiting. We felt very secure and comfortable.
The one thing to know about these units is that you access them via a spiral staircase, so small luggage is best.
I would definitely stay at Martin's place again.