I was mostly out of the flat for convention and sight seeing except for sleep and a shower, can't even make it for breakfast (what a pity), but I thank Belinda to accept my late check-in at first night. It's 1:20 AM, but Belinda and her house keepers all awake there and wait for me.
The house keepers are all helpful, it;s a bit remote from downdown, but indeed very close to EXPO, do prepare your own EZLINK card then you will be fine.
I will recommend a bigger room if you looking for a longer stay in Singapore. For me it's enough for three nights of stay.