Great location in the Gaslamp Quarter
We recently stayed at the Westin Gaslamp Quarter for 4 nights when attending a recent conference at the Convention centre. The hotel itself is not much different from any other large, major hotel chain. We stayed in a large room on the 10th floor overlooking the inner Broadway circle, so this helped to keep the noise down.
The room itself was large with a king sized bed, a couple of armchairs, and a computer desk, standard TV. There was a coffee maker with Starbucks coffee provided, a small fridge in the room and a safe. The bed was clean and comfortable, pillows great as well. Room was very clean and housekeeping did a good job every day. 
The concierge was very helpful with assisting with directions and providing a map, trolley information and directions to the various sites that we wanted to visit. The location of the hotel is perfect! we prefer to walk when we can, so the 7 block walk to the convention center was not too bad ordinarily, but a little tough to take for a couple of days when the temperature hit over 100! We we able to walk to many restaurants and shops in the Gaslamp Quarter, Petco Park for a Padres game, and the trolley station. Loved Ralp's grocery store just a few blocks away for snacks and cold drinks which were kept cold in the fridge. The hotel itself is right next to a shopping mall with Macy's, Nordstroms, Banana Republic, Aldo, etc so good for an afternoon of retail therapy.
There was an iron and ironing board in the room, but the board is a little on the small side ~ not an issue if you are doing touch ups, but will be challenging if you have any large or overly long item to press. Bathroom and shower were clean and satisfactory. The rooms perhaps could stand some updating, but are neat and clean.Internet was about 10$ per day for ordinary or 15$ for high speed access, buy a 4 day package if you can and are staying for more that a couple of days, it is a bit cheaper.
Not so sure that i would stay here again, there are a lot of hotels to choose from in this area, and we only stayed here as it was paid for. We stayed at another hotel for 4 days prior to coming to the Westin, and preferred it to the Westin except for the location. All in all, I could stay here again but would not be my first choice.