Skytrain from Changi Airport T1 to T3

Took a Skytrain trip from Changi Airport public area T1 to T3. The ride is easy and relatively fast. There are clear signs to direct you where to go. Along the way, there are decorative items ti make the journey interesting. It took me less than 10mins to reach T3. So basically, if you have some extra time, you can consider to take Skytrain from T1 to T3 as there are many more restaurants in T3 public area, and you can then pass through passport control at T3 before taking another Skytrain within transit area to T1.