We stayed one week in Silvia's & Gabri's place during New Year's Eve and we loved every minute of it!
First, we really loved the neighborhood where it is located - Poble Sec. It was very easy to get around by public transportation, there were plenty of great restaurants, tapas bars, coffee shops and it was just 15 minutes walking to Espanya square where the main New Year party with fireworks was held.
The apartment is very clean, cozy and decorated with good taste, has plenty of small fun touches and definitely has its character. It's not big, but has everything you might need during your stay. When it was getting cold, the heating system worked perfectly.
I would totally recommend this place to everyone and would stay here too again.