Xavier was awesome as a host. He waited though our flight was late and met us in person. Welcomed us with champagne and a unit stocked with essentials (including enough TP, starter spices/soap/shampoo/dish soap/laundry detergent). Full fridge with ice trays were nice on a hot June. NEspresso maker with starter singles. AC maxes out at a comfy temp but don't expect frigid. Water heater is inline, so can run out if you have long showers. Fairly good pressure. Bedding was clean, warm and comfy. It's loud on weekends. Saw fireworks from the roof (great view of Barcelona). Ramblas Carrefour grocery was .5-1 mile away with tons of food. Building was locked and safe. Xavier even left us his laptop on a guest account for surfing. Wifi was excellent. Couldn't get Netflix to work. Rec-beach items, towels or mat.
In general, awesome location. We walked to many things and T10 metro tickets get you and your family everywhere. Close to busy old town areas, so some partying and street folks. Building is gated and locked. Might not be good for small children at night. This building is in the Barri Gotic, so narrow alleys and dated structure. Furniture, floor, walls, elevator, stairs, all dated. But as a base for exploring, this was awesome.