Oh! I dunno if my advice is useful but I just did a company function there last month. The event was successful but we had tons of problems with the hotel. I basically was sold on the idea of an outdoor event concept and that was how I eventually ended up with the place. HOWEVER, it rained in the afternoon and suddenly, the staff told us that we are not allowed to use the place as their management's decision is that once the area is wet, it would be hazardous to the guests. That almost gave me a heart attack and this was not made known before I signed on the contract!
There were also other problems that I faced with the hotel - lack of response (an email reply would take on the average 3 to 5 days) and I had to even call up the hotel to chase for my contract when the event was only 2 weeks away. So, I am not sure if they are short handed or something since you seem to be experiencing the same thing. Sigh... I just wrote a letter of complaint to the management on these 'cos it was indeed a disappointment in the lack of professionalism and urgency.
But if you were to ask about the lighting, yes, it was a tad too dim. If you want them to put up more lights, I was given an additional cost for that. An advice is that f you are having buffet style, it may not be too good an idea. Some of our guests gave feedback on the cold and soggy food. All in all, my experience with them has been quite terrible.

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I just happened to leave a posting in a different thread. If you like an outdoor concept, you may wanna consider The Jewel Box, a newly refurbished Mount Faber. I was invited there for a launch party and I was quite astonished with the changes; I was not even aware that they rebuilt the place.

I am actually planning for another company function there end May and so far, the response and attention has been fantastic. Just a tot. If you are keen, you can visit
www.mountfaber.com.sg