I went there with my friend from Taiwan in the sunday afternoon . very nice ambience and you can have a great view o the bay area. furthermore they brewed their own beer and it is very good

Wonderful view ,but music a bit old fashion ,no dancers ...Full of expats
Just a Bar .At least my opinion .

1-Altitude is a great place to enjoy spectacular views across the city centre of Singapore, while enjoying a lounge-like environment.
At other rooftop observation decks around the world you are often indoors and behind glass; but at 1-Altitude it's open-air and you get clear views of the surroundings. If the weather is good, you can see as far as Malaysia and Indonesia.
I suggest you come in the early evening so you can see the sunset and how the city transforms from day to night.
Usually the bar asks you to order your drink already at the very bottom of the building, before even entering the building, which is strange and rather unwelcoming; but just let that one go and enjoy the view! :)

Quite a popular local drinking hole and great attraction although not cheap. An easy way to see the sights in all directions with the family, friends or workmates. There are higher and cheaper places to see the sights though.

I would recommend ION Sky if your looking for a free option that is spectacular.

It's a very beautiful place to be to view the landscape of Singapore's central business district but the music was pretty loud blasting away and I wasn't able to get a good chat with my partner who I went along with. We left earlier than planned due to this instants.