It's unfortunate that I always go to visit my relatives in the Taiwan region after stopping first visiting mainland China (the main airports are amazing there), because my experiences at TPE have been subpar, at least on arrival. TPE doesn't have enough gates and doesn't do any bus gates, so I've always been on planes that have to wait for a gate to open up. Then there's the screening of carry-ons upon arrival, then the delivery of bagages which isn't very timely. The airport just doesn't feel very spacious and the CI lounge I've been to has no natural light or outside windows.