The apartment is easy to locate with just as short walk from the metro train (Collblanc). It's located on the quieter side of barcelona but there are plenty of shops, markets, and restaurants. There is also less traffic in this area and the bus stops are also just a short walk away.
Arrived and was greeted by host's daughter, Marta. She provided us with useful tips and information about places to visit and a list of her favorite restaurants. If you like the beach, we were told to avoid barceloneta beach and instead head to El Mansou (30mins train ride to R1 Mataro) which was probably the most useful tip Marta gave us. This beach town is amazing, the water was warm and clean and the people were welcoming. The hosts were responsive and welcoming throughout our stay. Good people!
The apartment itself is well maintained and it appears to have been remodeled. Very clean look with all the amenities you can expect in an apartment. The washing machine in the kitchen is a plus! No drier needed! that's what the balcony is for :)

One thing of note, since its an apartment, people live in close quarters and it can get somewhat loud. If you like your privacy and quiet time maybe consider this part. Nothing like waking up to the sounds of the couple arguing (apt below) in the morning with my morning coffee, but that' definitely none of our business and surely out of the hosts control haha.
Also check out, the coffeeshop across the street and get yourself a nice cup of americano. You'll bet thanking the owner for opening 8am sharp after a night at opium barcelona.
Overall amazing stay! Barcelona is amazing, the people are amazing and this host is amazing!