I posted pictures of Drew and Tamar's place on my Facebook page the day after arriving with the caption, "Even more perfect than it looks." Stayed here for 6 nights, and it was just perfect. The apartment is exactly as pictured. It's very spacious in the front rooms. The bedrooms are small, but comfortable. One has a double closet and en suite bath. The other has a single closet and hall bath. Everything is updated, new, and modern. The property manager met us right when we arrived to let us in. He showed us around, showed us how everything worked, and then asked when our flight was on departure day, and arranged for the taxi to the airport (which was cheaper than the taxi to the apartment). He was also available if we needed anything during the stay. The apartment, the location, and the service (provided by Lee the prop mgr) all resembled a 5 star hotel, and was probably the best Airbnb experience I've had (and all of my airbnb's have been great...this was just above and beyond).
The apartment is perfectly located as well. Almost everything is a 15 minute walk away. La familia segrada is 4 stops on the metro away, but the metro stop near the apartment (Universitat) is a short walk.
Lots of dining options right next to the apartment. Cosmo's (great for breakfast or lunch) outdoor tables are literally out the front door. ETAPES down the street was fantastic (food and service) for dinner, and DelaCrem has the best gelato in Barcelona (and we sampled A LOT of gelato while there). We would not recommend Cheri for dinner, however.
There is zero reason not to stay at Drew and Tamar's place while in Barcelona.