I stayed there with my hubby just overnight. We had a late check-in around midnight and checkout according to their rules at 12pm.
To check out we had to wait in a line for 15 min as there were people checking in (not a group just individuals). I wish something can be done to make this process faster and more efficient.
It is nice location, clean and decent hotel. I think MRT is 10-15 min away (I didn't use it). We had minor problems to get a taxi on sunday morning and sunday afternoon to and from the hotel. Otherwise our stay was quite pleasant.
I wish we would be offered few hours extra before the check out. Say check out at 3pm as again our check in was very late.
I would recommend others to stay in this place, though Singapore has a lot of other hotels and variety to choose from.

I have just returned from a 3 night stay for business. Check in was easy and porters were very welcoming. When you read previous reviews re front desk attitude, I concur that whilst they are competent and efficient, you dont get a warm feeling from them. The room was a reasonable size with great areas to work from. I stayed in a club room so wifi was included. The shower definitely was very small, and the one piece of soap was strange. I did eventually get a second soap the next day. Club breakfast had a nice selection each morning. The MRT stop is very close but taxi's are very cheap anyway( at least 30% cheaper than Australia). There is nothing stopping me from staying here again, but I would like to see if something comparably priced in Orchard road was available.

M hotel is located at quite a central location.
Very near to some of the very nice places and streets of Singapore with plenty of nice cafes and interesting shops for sightseeing.
7-11 also 2mins walk from hotel, its rather convenient even at night.
There's 24hours room service, so there wont be a concern of getting hungry at night too.

Other aspects are very normal and average though. Service very normal, no outstanding enough to be commented. Though room service was not very well done when we asked for chilli and they provided ketchup instead. No salt and pepper provided for the western food we ordered too.

Room was pretty average, clean but not particularly nice.
They provided most things we need like towels, shampoo, conditional, shower foam, toothbrush and toothpaste. Hence that aspect is quite properly provided.

Hotel is nice but too deep in the CBD. After offices shut, place is almost a ghost town. Cabs are tough to get in the evening and a trip to Orchard Road could take an hour so be mindful and plan your commute. Rooms are spacious and tidy. Good food, restaurant is nice and so is the tea hut. Good for business travelers and for short stay.