Grand Hyatt Barcelona Hotel Review is part of the Gold Medal Trip Report.
There are hotels that I expect will disappoint. There are also hotels that I expect to exceed expectations. Grand Hyatt BCN was one of those that I expected to be great. In the end, there was good, there was bad, and there was annoying. 
Good: Room
Great king-size bed, good shower.
Bad: Elevator Room
I hate rooms next to the elevator. Worse than the elevator was being next to the service entrance. All morning it sounded like someone was coming into my room. I would hear dishes and glasses tossed around and people talking. It was impossible to sleep.
Annoying: Coffee
I found it funny that they gave 4 decaf to 2 normal espressos (see Why So Much Decaf?). 
Good: Happy Hour
Who doesn’t love a great happy hour? Excellent Cava and a diversity of snacks were offered during the two days I went to the bar on the ground floor. My personal favorite is the tortilla de patata.
Bad: Lounge
This was one boring lounge with no atmosphere. It didn’t even have music. It did have plenty of normal coffee.
Annoying: Location
While the location of this hotel was not as remote as the Hyatt Regency Barcelona Tower, which was in the middle of nowhere, the Grand Hyatt Barcelona is not in the heart of the city. I wasted too much money on taxis instead of being able to walk out my door. 
Good: Spa
The spa was incredible. After my experience in Colombia (see Frozen: Ice Bath Medellin), I easily handled the cold pool and spent the rest of the time dipping here and dipping there.
Bad: Pool
I am exaggerating when I say the pool was bad, but I need to keep the theme going. It was adequate. 
Annoying: People
People who put their hands in the chip jar (see Etiquette of Things: Keep Your Dirty Hands to Yourself). 
Overall
The hotel was good, bad, and annoying. The only reason I would not stay here again is because of the location.
When were you there? We just checked out of the Grand Hyatt Barcelona about a week ago, early September 2024. The lounge had music where I actually thought it was too loud. The lounge was well used during our stay. The happy hour was excellent as well as the breakfast. Although we did not have the ham legs on display while we were there. We found the location to be fine. There is a metro stop less than 5 minutes away and we used that each day to get to different parts of the city. In your paragraph regarding the location you typed in Hyatt Regency instead of Grand Hyatt. We were traveling with 6 people in 3 different rooms and we all enjoyed this hotel.
I was also confused by the reference of Hyatt Regency Barcelona. That Hotel absolutely sucks!
No Help at the Front Desk or Bell man! Breakfast sucks, Lounge is awful! Total Disaster.