Not a 5 star hotel.
Maybe 3.5 to 4.0 average score for service.

The Good;

Facility and cleanliness: 40 to 4.5.
Doormen: 5.0 for taking care of baggage and incoming and outgoing guests to ensure they are catching their taxis or leaving their taxis.
Restaurants: 4.5 to 5.0 excellent service and food options

The Not So Good:

Very basic issues with The Ambassador Hotel Pullman in Seoul:

1) No receipt available of hotel stay. Very basic data such as a daily room rate receipt not available upon check out. In other words, you have zero idea what you paid in Korean Won (KRW) vs your local currency (I.e., USD, EUR or GBP). This is a very simple ask yet the front desk assistant manager Jacob Ham sincerely could not disclose the simple room rates for my total stay and provide a KRW receipt due to it being against Pullman Ambassador Hotel Policy.

I think that policy puts the hotel front desk at risk of being at many levels. Financial reporting is a critical part of the hotel stay. Yet the front desk staff have zero power to provide a basic receipt is not a 5-Star hotel practice.

2) Room Service: Rated 2-3 stars. The Room service Team on 3 occasions look terribly unprofessional and unhappy with their jobs when they slam the door when exiting the room after dropping off deliveries. They look they are mopping around and miserable from either poor management, poor training or understaffing. I cannot figure out why they look and behaved as they dislike their jobs.

I had a great stay at the Ambassador Seoul Pullman Hotel and would rate it 4/5.
The hotel was very clean, and we loved the Executive King room. It was spacious enough for me and my girlfriend to relax comfortably. The city view was great, and the bathroom—especially the bathtub—was a highlight. Housekeeping also did an excellent job keeping the room fresh and well stocked.
The location is very convenient, with coffee shops and stores nearby. There are also two GS25 convenience stores within a short walk—one behind the hotel and another near the train station down the hill. The subway station itself is not far and easy to reach.
Breakfast on the upper floor had a beautiful view and great atmosphere. Most of the food was good, though one fish dish was just okay. The coffee machine was also a bit complicated to use and could be more user-friendly.
The front desk staff were professional and polite, and they communicated well in English, which I appreciated. However, they sometimes seemed a bit strict or reserved.
One small improvement would be the bathroom glass panel, which makes it difficult to watch TV from the bathtub due to the tint.
Overall, it was a very enjoyable stay and I would gladly stay here again.
⭐ Rating: 4/5