We enjoyed the apartment very much!
We were 3 adults staying in Barcelona mostly for business so we hardly spent time in the apartment itself and we didn't mind the small sizeof the apartment.
The location is great! just 2 minutes walk to Placa Universidad and a metro station, walking distance to the Rambla and the Gothic Area. Lots of bars and restaurants near by.
Only disadvantage is that the elevator in the building is pretty noisy so when someone uses it at night it might be annoying.
One thing I didn't like about Tendency is that they asked us to take out the rubbish . Of course I'll keep the apartment as clean as I can but taking into account I'm also paying for cleaning services I would not have expected to be asked to take out the rubbish.
In conclusion, I would definitely recommend staying in this apartment in your next trip in Barcelona! (I would definitely stay again)