In short, I would highly recommend the Hotel Arts (as the locals call it). The rooms are generous in size, very nicely appointed with large bathrooms and top end linens and bath products. If you are a family traveling I would certainly recommend this property due to the larger size one and two bedroom suites which you can reserve for a reasonable rate if booked in advance. The rooms have spectacular city and/or ocean views and while we had a majestic ocean view it would not be a hardship to overlook the city of Barcelona, particularly as you can view down the expansive boulevards. Personally, I thought that the city view was more interesting than the sea view and comes at a better price point.
Breakfasts were indulging and are included if booked through Protravel and there is both indoor and outdoor sitting. The swimming pool is on the 2nd floor rooftop overlooking the beach and sea and proved a great mid -afternoon hangout in between our morning and late afternoon or evening tourist excursions (especially if you are traveling with children). The hotel has a good gym with cardio and free weights in addition to a well-regarded Spa.
The Hotel Arts has everything you would expect from a top luxury hotel with excellent service. At all the common areas of the hotel there was an abundance of staff helping with check in, bags, taxis and directions. We never felt we had to chase down information as it was always in front of us.