Mike's place is just as you see pictured and described in comments. It is well renovated and is spacious. You pretty much get more than what you see. All the amenities were readily available as like staying in a hotel, if not better. The Wi-Fi was stable and we had no issues while doing our work.
The location is walking distance to the metro, 24 hours supermarket and 15 mins walk to the street of La Rambla. Place is also convenient to 3 metro stations, making it much easier to commute.
Mike is one of the best airbnb host I met. He shared with me on how to go about to the city of Barcelona, along with the recommended places to visit. He also keep in touch with me through email and whatsapp.
Do take note that the apartment is on the third floor with no elevator. This would be a good chance for morning and night workout!