Ruru - queue is long when we arrived. At least 1 hour for day passes (around 11am). Was shorter when we walked past around 1pm. Annual pass is 68 for individual and 18x for family. Free for kids below 3.
Be prepared for bad weather. Always bring an umbrella along just in case. The place is extremely stroller/wheelchair friendly, so don't worry. Bring in the biggies! There's ample space to wheel them.
Although its sheltered from the carpark to conservatories, I feel that the shelter is useless during heavy downpour. Imagine those narrow and tall shelters covering overhead bridge. I was expecting carpark to be linked directly.
Ticketing can be a nightmare in the mornings. Perhaps it's still a novelty, the queues were long for day passes (probably
1 hour) given the length. We decided to buy annual passes instead since it was shorter.
If given a choice, I'll choose the cloud dome over the flower dome. There is a massive waterfall at the entrance which is quite dramatic. My boy woke up from his sleep the moment we entered. Although he felt back into slumberland soon after. Once inside, we took the lift to level 7 (entrance at level 3) and descended via the walkway. It was fun! Cool weather with sunlight pouring in. I felt as though I was in Europe or Australia. Take time to read the little nuggets of information and admire the works of art.
The flower dome is a little disappointing. Quite short walk, though there were flowers everywhere. Great for photos if you are an enthusiast. Not much for the kids to do. Haha.
OCBC skywalk. It's on its own with the super trees and not sheltered at all. It may be closed due to bad weather. It's a one way treetop walk from one super tree to another. The view up there is great and it's breezy too. Honestly I didn't feel the sun nor heat although it was noon. Maybe I was lucky with the clouds above. However, I feel it's no worth paying $5 for that (free with annual pass though). The walk in the cloud dome is similar, if not better.
Foodwise - most of the food is concentrated at the visitor centre, specially the part facing the OCBC skywalk. We tried verandah. Good local food although the coffee can be improved.
Overall it's a nice place to bring the kids. Lots of open space. If its hot or weather is bad, there's always the cool conservatories to go to. That said - lots of open space means prone to rain. Be prepared.