So my daughter is arriving 2.5 hours earlier than us her on SFO-TPE flight and we are flying LAX-TPE. She is flying United and we flying Starlux or China Airlines.

We are looking for a waiting area for her once she arrives and I came across https://www.taoyuan-airport.com/featured_experience?lang=en . Is there a charge to use those waiting rooms? Is it after immigration and customs in arrival area?