This is a great spacious flat, very well located! The rambla is such a beautiful street, we were walking distance from everything: Sagrada Familia, Plaça Catalunya, beach, Paséig de Gracia, etc. We were 9 guests at the most during our stay, and there was space for everyone. All rooms had A/C except for one, bathrooms were spacious, and the balcony is a great feature for sangria nights! The building is beautiful and well maintained, and the elevator is a great asset since this flat is at the very top!
I definitely recommend staying at Gunnar's. We had an amazing time!