I'm currently staying at this hotel and I'm happy with it. The room is modern and clean. It's maybe a bit small but I don't really mind.
There's a free minibar (with coke, fanta, water, and mineral water) which is refilled every day.
The hotel is a 2 minute walk from Sants Estacio (train to airport and metro lines L3 and L5) and about 5 minutes from Plaça de Sants (L1 and L5).
Free Internet is provided for Gold/Platinum: you'll get a code at checkin that's valid for the duration of your stay.
There's no free breakfast for Gold/Platinum but that's normal for AC Hotels.
I'd agree that the breakfast selection is a bit limited. For example, there weren't any hot eggs or sausages (but they had a selection of cold meats, fruit, etc).