I stayed for 4 days in a single room during the main holiday session.
The apartment was fully booked and all people I met where lovely without exceptions. The community at this place made it overall a good experience and nice, little adventure.

The yoga: I had three different yoga teacher during this time. I wasn't convinced by the teaching abilities of all three. However, I had a view classes with Mar and she is an extraordinary teacher. She will guide you safely, with all necessary cues through the asanas and with her passion for teaching yoga she really creates magical moments. Thank you Mar for this great experience!

Regarding the housing: No, it's not a five star hotel, it's a spacious shared apartment with basic furniture, right in the city center.
All common areas are cleaned every day. It's not spotless clean (light switches and doors are a bit greasy) but I found it acceptable clean.
What I found quite disappointing, however, was the fact that my room had a window but no daylight. That looks quiet different on the website. I asked for another room but at this time all rooms were occupied and from what I saw, out of 7 or 8 rooms only 2 have windows with daylight. You should also know, that there is no key to your room. The room is always open but the front door of the apartment is only accessible with a key.

In summary, this might be a place for you, specially as a solo traveler, if you want to explore the city and do a little yoga on site.
If you are looking for a quiet, bright and relaxing oasis for your vacation you have to look for a different place. If you an regularly practicing yogi and you are looking for a retreat were you can bring your practice to the next level I would properly also not recommend this place.

We stayed for 3 days in June, with yoga in the morning and evening. The teachers are very different from each other and each have their own style, but all really nice and friendly. During the day we explored Barcelona on foot, the place is pretty central with 40 mins to Sagrada Familia, 5 minutes to the Gothic Quarter, 30 minutes to the beach.
Don't expect a hotel, its a shared flat, and more of a community feeling - which was super nice. I'd definitively consider returning if it works out with life and work and all.

As others have said, this is not a five star hotel, but an authentic experience in the heart of Barcelona.

Fabulous location, really central and easy to get to the main tourist areas and close to Metro.

The building is absolutely stunning, but has a faded charm, shabby chic is perhaps the best description. Don’t let the dreary entrance hall put you off, once you get inside it’s bright and airy.

The retreat would benefit from adding a bit of luxury feel - for example, we only had one towel each, a hand towel and a robe would have been nice. Simple touches like a small bin in your room would also be handy.

I really enjoyed the yoga, very dynamic lessons and Anna in particular is a great teacher, loved the practice.

Lots of reviews mention the food, it’s very fresh but some of the fruit juices were ‘interesting’ at best and no one was quite sure what they were! Some mornings I found it a bit early for chickpea stew and salad, but that’s a personal thing.