hi celine, guekpeng is no longer with RTC already, just found out 2 weeks ago.
anyways, had my ROM at RTC's private lounge for 50 guests last week, food was good, deco they provided was enough for us, service of Michael and his team was excellent!
we had a free 1 night stay at their suite cus we had 50 guests and above, and we made the booking last year nov. dont think that promo is valid already though. if you don't have a room for overnight staying, i think they have one private room for you to do your makeup there.
anyway, its best to book as soon as possible, cus there's no such thing is kiasu in venue booking, theres somebody always more kiasu than u!