Mercure's location is extremely convenient - a short walk from Jesselton Point jetty, Jesselton Duty Free mall and Suria Sabah mall. Gaya Street is less than 10 minutes walk away too. The room is comfortable, but the bathroom is quite old. Shower leaks through the gap in the glass door.
Soundproofing between rooms is not good - could hear the room next door talking at night.
Breakfast spread is OK, a mixture of Asian and Western options. Aircon at the breakfast area was not working,so they put fans.
Rooftop pool is small but has a nice view. Rooftop bar... Is quite dead. You can enjoy a tea for RM10 with the view of Jesselton Pier, but they need to improve the decor.
Driveway has no roof, so you will get soaked if it's raining. Staff are friendly.

booked direct via Accor, assigned to clean guestroom 2011 on higher floor with lounge separate from generous size bedroom and 25th floor rooftop lap pool lookout to the Gaya Bay Area, walking distance to eateries nearby. Feedback for maintenance: the room safe and landline phones weren’t working for stay August 23/24, had to visit reception counter to connect myself with my travel mates on other units (had my mobile phone conk out otherwise would not have notice the hotel phones are faulty).

Our family of 5 recently stayed at the Mercure for 3 nights on our recent trip to Sabah.
Our stay was nice and comfortable, we would certainly recommend this hotel.
We had a family suite with 3 bedrooms and 3 bathrooms. The suite included a kitchen, dining , and living area. Great views from the glass doors in the living room.
The rooftop pool was nice, with great views.
Breakfast was good, with a variety of Asian and Western choices, and made to order eggs.
The hotel is located in the northern part of KK, close to Jesselton Point Ferry Terminal. Suria Sabah Mall is a short walk behind the hotel. There is a good supermarket (Tong Hing) around the corner.
There are many places to eat withing walking distance. Places we tried and liked nearby were Peppermint (Vietmamese), Pasta Pasta (choose your pasta and homemade sauces), Fook Yuen (Rice, noodles, Dim Sum, soup).
For ice cream fans, there are some nice ice cream places at the basement level of Suria Sabah mall. Plenty of restaurants in the mall as well.
We had a rental car. The hotel does not have parking, but it wasn't too much of a problem. The street parking in front of the hotel is run by the city from 8am-5pm on weekdays For parking during those hours, we bought parking coupons at the hotel. It was only MYR 1.10 for every 2 hours. Parking at other hours is free. Beware that coupons bought at the hotel cannot be used for parking in other areas.