We stayed at Alaia 12 apartment for 4 nights in September 2022 and overall we were very pleased with the accommodation. The location was excellent, right on the metro and easy walking distance to everywhere; within 30 minutes you could walk to any of the main attraction and it only took 45 mins to walk to Spotify Neo Stadium. Although the apartment looks over a busy road the double glazing totally blocked out any road noise, unfortunately they did not block out any noisy neighbours. Disappointingly we had to listen to some toddler running up and down the flat above until midnight on the first two nights! You can also hear everyone passing your front door as they make their way downstairs.
The apartment is well equipped with towels, cutlery etc however there are no nice surprises like a pint of milk, tea bags or coffee capsules for the coffee machine so be prepared to head straight out to the supermarket; there is one 5 minutes walk away. Also make sure you bring a tea towel as again, one is not provided. There is also nothing in the draws or cupboards like tin foil, parchment paper, oil, salt, pepper etc so be prepared to have to go out an buy this as well. That said we found the apartment to be more than adequate, cosy, comfy and very well located, would definaltey recommend for a long weekend in Barcelona :)