We loved that Manuel and Francesca's flat is so centrally located: being able to easily reach the tourist attractions without having to be inundated with tourists, was lovely. There's a plethora of great shops, grocery stores, and restaurants within a 5 minute walking radius, and even more at 10.
This is truly a home away from home - it was easy to settle in for our month-long stay, and the desk/office and fast high speed internet made working from home a dream. Having Netflix was a bonus! If you like to cook, the kitchen is amply stocked, complete with a full-size fridge.
A couple things worth mentioning for other long-term guests of parties of 3 or more: the master bedroom of the flat faces a busy street so if you're not used to street noise, you'll want to have earplugs or noise cancelling headphones/earbuds. Also, the 1/2 bath toilet is for "number one" only.
It is a few flights of stairs up to the flat, but there is a working elevator if needed. The neighborhood is safe and friendly and full of local flare. It's easy to get all around Barcelona, being situated about equal distance between two metro lines (Entenca to the north, Rocafort to the south) - we did travel all around the city and believe this to be the best location. So if you're looking for more of an 'immersion' experience like we were, Manuel & Francesca's is the ticket!