The subway network of Singapore is very good and understandable. Everything is clean and orderly.
Left-hand traffic, of course.
We drive a lot of with public Transport. The public transport is very cheap. In the subway stations, you can buy a kind of cheque card at the counter and then simply load it at the ticket machine. Now you only have to put it on a display and you will be shown the remaining amount. Very practical. There are shops at many stations. Also food courts.
But you need more time and between the stops there are many interesting things you won’t see.