far away from city center, this hotel is ideal for company convention but not for touristic stay specially for familles with kidds. I have room on 20th flor with panoramic view on city, breakfast without tomatoes ( for me it was a drama) . Oposite the street is large shopping mall.

I stayed at the AC Hotel in Barcelona late January 2012 and I was looking forward to my stay. I know and trust the brand Marriott for many years and have a good idea of what to expect. I was very surprised with my experience at AC hotel Barcelona and I'm now very confused with this brand of Marriott. Not sure if they are trying to imitate W from Starwood or what but their offer is far from being clear. In a nutshell, here are some observations on my stay:
1.The hotel is very far from the center... so think about many taxis rides during your stay. 2. If you stay during winter months, expect to stay in a sauna. The temperature in my room was 26C and when I tried to used the air conditioning, it was heat coming out instead. I asked the front desk if maintenance could check what is wrong and I've been told that the hotel shuts down the AC for the winter months so there is no way to have cool air in the room. I found this very cheap and not in line with Marriott's standards - Bad Surprise#1. 3. The room rates are attractive but then you get stucked in paying a lot for any basic service in the hotel (wifi at 12 Euros per day, minimal and below par breakfast at 23 Euros and parking at 24 Euros each per day). Very surprised to see wifi at 12 euros per day when the trend in most hotels is to have it included - Bad Surprise #2. 4. I was looking to have a coffee in the morning but the hotel bar on the 1st floor was closed and the main restaurant refused to sell me coffees and told me that my only option was to get it from room service at almost 10 Euros with the 4 euros delivery charge - Bad Surprise # 3. 4. Finally, in my room, there was only 1 electrical outlet and non available at the desk. On top of it, the only outlet is linked to the main lighting switch in the room and it dies as soon as you shut the lights at night. So if you have your phone charging to make sure it will be full the next morning (of to use it as alarm clock), you'll be in for another surprise when you'll find it dead empty the next morning - Bad Surprise #4

All in all, I think Marriott brand managers have some serious work to do with this brand. I think having Marriott associated to the chain in this case is not helping the overall brand and will now discourage me from using any of the chain's hotels as I'm afraid I won't know what to expect anymore. SPG has their standards more buttoned down.

On the positive side, the minibar is complemetary and the staff if ok.

Would I go back or use AC brand again? No. What about any other Marriott brands? Most likely not.

I stayed in this hotel for business and just for one night.
The hotel is good and modern: rooms are good size and clean, but I believe that something is wrong with air conditioning system. My room was extremely cold and i could not make it warm so ended up falling asleep in a bath robe. Minibar is included in your room rate so enjoy it.
Breakfast is sufficient but not as diverse as in the rest of the Marriott hotels. If breakfast is not included in your rate, do not bother paying premium for it and just go to the shopping center nearby to get some food.
Staff was helpful but it does take a while to check in and check out for some reason.
All in all the stay in the hotel was good, but I think this hotel is more for business people than tourists. If you want to stay closer to main tourist attractions, do stay somewhere else.

Stayer in the hotel for 4 nights. First of all, even if we had a reservation it took us almost one hour to check in.
Second, even if when I made the reservation I explicitly asked for a roo with sea view ( and I received a mail back stating that they would have take care of my request) we ended up staying in a room on low floor overlooking a street.
Third of all, one evening my key to the room was not working and I had to go up to the concierge and back to my room floor 4 times before the problem was solved and I didn't even received a "we are sorry for the inconvenience " .
So I would say that, notwithstanding the hotel is modern and nice overall, the service is really below average, making the staying in this hotel an ok experience and nothing more.