Natthakul
Google
Probably one of the best stadiums in Asia right now. It's simple, effective, great atmosphere, most importantly there is a roof, and it is air-conditioned.
Traveling there is a breeze, it's located between two MTR stations, choose either one. If you arrive at Kai Tak station then there are two big shopping malls that you can eat before the event. The walk to the stadium is just 10 minutes. Getting into the stadium is incredibly easy, there are no lines, the check is fast, and from the gate to your seat, it is a very small walk. It's very well designed. Inside is new, the roof is closed, and there is air-conditioning, making a comfortable atmosphere.
Getting home from the stadium is also very easy, there are no wait or queuing for the MTR, everything is very efficient. Truly a great experience all-around.