First, thanks to 蒲鬼 for providing KTV information. However, I didn't get to try it (I have actually been to some other KTV a few years ago in Taipei) but hopefully will try the one 蒲鬼 recommended sooner or later.
Since no one gave me any information on call girls, I decided to do some research on the website and found a number of numbers to call. At first, I was hesitant given that there are so many rip-offs and "release snakes" there. However, my little brother wanted me to try so I called the first number one on my list.
The guy on the phone sounded quite nice. I asked for "Taiwanese Tea" (this is what they call them as opposed to Chinese Tea) and he said it will cost between NT$4000 to NT8000 depending on quality and type. He said a model would cost NT8000. The price region is actually a little expensive but still acceptable. I chose NT$5000 at the end (which was stupid because I think I was given NT$4000 quality) and clarified with him that there will be no other costs like taxi fee. So he asked me the type of girl I wanted (like figure, skin colour etc). I asked for a medium size girl with pale skin. He asked me to wait for 20 minutes. No need to pay for anything.
I ended up waiting for 1 hour before the girl knocked on my hotel door. She fitted my medium size / pale skin requirements but she wasn't pretty. She was fine with me changing so I called back the guy who promised to send someone else over quite quick. This time, I waited for 20 minutes and another girl came. She was actually not too bad but I wouldn't consider her that great. I would rate her 6.5/10 in terms of look. Figure was what I wanted.
It followed by a bit of routine stuff and I didn't find it exotic enough. Give me a standard BJ then followed by the real stuff. Average service overall.
Overall experience, better than going to Ya Tai sanua which costs NT$4200.