Pros:

1- Great location (but it has it cons, which you will read below) Fahrenheit Mall is opposite the hotel and Lot 10, Pavilion and Starhill is 2 minute walk. Sungai Wang, BB Plaza, Low Yat, and Berjay Times Square are around 10 to 15 minutes walk.
2- Fast check in and out
3- Nice gym.
4- Breakfast was nice
5- Clean bathrooms.
6- Very comfortable beds and we absolutely loved the pillows.

Cons:

1- Too much prostitution around the hotel and a lot of times those prostitutes (they call themselves Ladyboys) stand in the hotel's driveway and the security does nothing about it. I even made a complaint that they are in the driveway and offer their "services" to the hotel guests, but they did nothing as far as I could see. They used to swarm around the end of Buket Bintang, which is why we chose this the Grand Millennium Hotel, but now they shifted their activities where this hotel is.

2- Although you might see police patrols, in the evening the entire area becomes all about prostitution and drug selling!

3- Bathrooms needs better maintenance.

Stayed at the Grand Millennium well worth the money spent. We had two rooms in the club executive suites at a very reasonable price. Advantages are the central location and the use of the club lounge for breakfast.It is a one minute walk to the major shops and the service from staff was brilliant. I would stay there every time as the kids were able to shop and walk around safely. ask about the executive club room where there is breakfast and afternoon snacks and drinks available. We virtually ate for free and this included drinks in the evening.

Comfortable, well situated and great services throughout. All was thoroughly enjoyable at this hotel, food and beverages all served with a smile in my experience. It's location is great and made for a really super holiday.
The breakfast buffet had an enormous choice - fill up and nothing needed until night time!

You may remember this hotel when it used to be The Regent. It is now part of the Millennium and Copthorne hotels chain, which has its good points and bad points.

Firstly, the location of course hasn't changed. It is bang right in the middle of Bukit Bintang, the shopping and eating centre of KL. On one side is the newly opened Pavilion shopping centre, and opposite are the Farenheit, Starhill and Lot 10 centres, and 5 minutes away is Jalan Alor. In my book, nowhere else in KL beats this location.

The grand reception lobby has undergone a slight renovation, although it looks much like before. Gone however are formal check-in desks, and replaced by a scattering of fairly informal looking desks, I guess to make it more friendly but actually I found it more confusing. The staff all seem to be well trained, corporate, polite, and dutiful, but not overly friendly and don't go over and above their duty to help - I guess this is part of 5 star chain hotel training.

The rooms are still large and well kept. The beds are comfortable, with a range of pillows for your head, and a decent mattress and duvet. There is a large flat screen TV, and standard facilities such as tea making, iron and board, and a hairdryer. An armchair and small side table, and a writing desk compliment the rest of the room. The bathroom has both a bath and a separate shower, and although is not new, is kept clean.

Buffet breakfast served on the first floor is good. It was very busy over the new year with guests queueing for breakfast, but on other days it copes well. There is a wide selection of chinese, malaysian and western choices, including omelettes cooked to order, and a pastry stand. Being a predominantly muslim country, bacon is made of beef, and sausages are made with chicken. I would stay away from both those choices, and choose one of the myriad of other foods available! Alternatively, don't book breakfast there at all, because the oriental food court over the road in Lot 10, or the international food court adjacent in the Pavilion both have the most fantastic food at very good prices, and this is most likely what I'll choose to do next time.

There is a decent sized supervised swimming pool on the 3rd floor, with deckchairs if you choose to relax there, and a reasonable sized gym next to it. They are functional and well maintained if not overly attractive.

There is free wi-fi only in the reception lobby. Comfortable sofas are available for you to sit in and surf using your mobile device. Wi-fi in your room is also available but costs money, and again I wonder whether decision has been made on a corporate level to earn business dollars. Other hotels throughout Asia I have stayed in offered it for free, something I would have thought a 5-star hotel like this really should be able to do in this day and age.

Public transport is within a 5 minute walk at the Bukit Bintang monorail station, although bewarned the monorail doesn't really do anywhere useful! The concierges at the front door will help you get a taxi, but I noticed that either an expensive executive taxi is available, or they direct to an overcharging one parked on the roadside. Taking taxis and haggling for fares in KL is enough of a problem without you always feeling the hotel is in on the game.

So all in all a decent hotel in a fantastic location. There is nothing specific to 'fault', but then again no-one seems overly personal or friendly in a way you may find in a non-chain hotel; probably perfect for business but not so much for couples and families.