We had our reception on the terrace on 2/2/13 (my review is awaiting moderation). We had 53 people at the reception - four rectangular tables. The dancing was definitely tight, but it didn't stop us from having a great time, and I would say almost every one of our guests was dancing at some point. The only real problem is that there is a slight step in the area where we were dancing. Knowing this now, I would still have it in the same spot, or maybe at Castaways, if that's an option.
If you don't mind being inside, I thought the Bamboo room was beautiful. I didn't look into any of the other locations because we really wanted to be outside.