Two word review: Top. Notch.
We've stayed at several different Airbnb properties in Gràcia, and while all of our experiences have been excellent - we can honestly say we have not experienced hospitality, availability, and accommodation like that which we experienced with the guys managing 5VE SOUL. Location is perfect. Check-in was perfect. Communication perfect. The room is lovely. The terrace is lovely. 10's all around.
Illustrative anecdotes!
1) This is a newly renovated properly. Top to bottom. At the expense of a shiny-new, immaculately clean apartment we expected some kinks. We found one on the first night: Recessed bathroom lights which hadn't been wired into the wall switch and couldn't be turned-off. Messaged the boys. Responded immediately. They provided some troubleshooting steps (throwing breakers)...which didn't work as it seemed the lights weren't wired in series... easy mistake. They had an electrician there within hours. Issue fixed. High-fives all-around.
2) Part of our reason for being in town was to navigate some exceptional Spanish visa and banking bureaucracy - which required an unexpected number of printed paper forms. The fellows had a printer in the lobby. Messaged to see if they minded if I used it. They were all, "no worries mate, use it as much as you want." Acted predictably printery and wouldn't work with my machine. Messaged the boys. They asked for the PDFs. They printed a boatload of copies. Day saved.
3) And finally for the, "We're only ever staying here in the future." tale: After another impeccable week in Barça, it was time to leave. Went to airport. TAP completely f-ed a family of four for a 2200 flight. Left us stranded. Needed a place to sleep so we could come back bright and early to continue telling TAP how terrible they are. Messaged the boys (at 10pm mind you). Asked if we could stay in the room overnight and if there was anyone around to let us in (we'd left our keys in the room not intending to return). These guys left whatever they were doing on a Saturday night and met us at the apartment @ 2300. Got us in. Asked if they could get us a car for the morning. Hung out for a bit and chatted. Got us setup. Asked if there was anything else we needed. Total champs.
Long story short: This property and the guys managing it get our highest rating. I cannot recommend this properly and these fellows highly enough.