We had a great stay in Sandro's appartment. We combined a business trip with some quality time with our 3 year old daughter. There was a toddler bed and chair foreseen (thanks!). The wifi was ok and gave the opportunity to work outside on the terras. Location was great: near to everything (bars, restaurants, ...), childfriendly (playgardens everywhere), sight seeing (Parc Guël, Sagrada Familia, Rambla, ...) and on walking distance of our office.
Well equiped appartment with bath towels, kitchen towels and all kitchen equipment you can imagine, ...
One attention point: cheaper and very easy to arrange your own taxi for the airport transport (between 32€ - 35€)