AC Hotel Diagonal L'Illa

We loved this hotel. We had a large room very comfortable. Staff were very nice. Nice outside deck are and common space. Not the most ideal location to attractions but in a nice business area.

I stayed at this property from November 26th to December 18th, 2025. While I am a loyal Marriott Gold Elite member, I feel it is my duty to warn other travelers about the serious safety risks and the lack of professional responsibility at this hotel. During my stay, I suffered a life-threatening incident caused by gross negligence within the property. I have clear video evidence of this event, which proves how dangerous the situation was. The most shocking part was not just the incident itself, but the management's reaction. I reached out to the General Manager, Mr. Ruiz, multiple times to find a fair resolution. Instead of taking responsibility for a guest’s safety, the management chose to ignore my emails for weeks and eventually hid behind vague corporate excuses. If you value your safety and expect a professional response when something goes dangerously wrong, I strongly advise you to look elsewhere in Barcelona. A brand like AC/Marriott should prioritize human life over bureaucracy, but unfortunately, that was not my experience here. The matter is now being handled by my legal counsel. I have all the documentation and video recordings to support these claims. Stay away if you expect a safe environment and accountable management.

Stay was great. Location is v good. -->Right in front of bus stop, next to a mall with grocery store and medical shop. -->Room sizes are the best part about the hotel. -->Staff was very accommodating, special mention for ISI from the Front Desk and Patricia in the restaurant. V Helpful. -->Daily housekeeping was an added advantage. -->Breakfast is very very boring. I mean its exact same every morning, just 1 change of dish else exactly the same what they serve daily. There could be so many options to be on rotation. For a brand like Marriott, this is something they really need to fix. -->Disposable Glasses in rooms instead of crockery feels so low grade hotel. -->More and properly placed switch board in the room would be helpful. I would recommend the hotel for a stay in Barcelona.