North Americans sometimes seem to have a less than positive attitude towards the Holiday Inn brand. Perhaps that is changing as the North American locations are increasingly renovated, but it surely does not apply in Asia. The the Holiday Inn Atrium in Singapore is a quality hotel by most estimations.
It is an approx. 26 story hotel bills on the atrium model, with an open core. The rooms are very nice - large and with a comfortable bed. Wi-Fi is provided throughout the hotel. The included breakfast was excellent, encompassing both Western and Asian style breakfasts.
The Holiday Inn Atrium is not inexpensive, but very little in Singapore is. For a quality hotel in Singapore the price was very fair. I was there for two days on business and it suited my purposes very well. The potential drawback from a tourist perspective is its location, which is not convenient to shopping, although the hotel does run a free shuttle to Orchard Road, the main shopping area.