The lounge is not too big, I think it's only about 10 sofas. We sat at the front corner facing the DJ. I think the best spot. We got a bit lucky. Some girls then came and sat beside us. They were not too bad, but not too good either. Just OK. Their attitude were really nice BTW. I was informed that there are about 4 girls from Jakarta, and the rest are working in Bali before.
http://www.indoholiday.com/2008/11/up-heaven-lounge-n-spa-tuban-bali.html