The discomforts listed below is probably no fault of the hotel - more to my lack of pro-activeness.
1) Smoking floors
Forgot to request for a non-smoking floor so got a smoking floor due to hotel being fully booked. Could smell the smoke. Not sure whether its is just prevalent from the carpeted floors, corridors, other rooms or even the air conditioning. Not sure whether practical for hotel to use some sort of vacuum or ionizing machine to "sanitize" the smoking rooms/ floor once in a while.
2) Busy hotel.
Due to location (and/or visit of Man Utd the same weekend) the hotel was fully booked. Did not get late checkout and the common areas were a bit busy. However this is no fault of the hotel. Novotel Pleonchit 2 BTS stops down is probably less busy and might be more suited for visitors traveling on business rather than family holiday/ shopping.
However this hotel is located in a great location with BTS Siam just 2mins walk outside. Walking distance to MBK, Paragon & Centralworld shopping malls. Book early (generally at least 21 days before stay) for great discounts. More