The Taipei MRT system is just like the tube in London or the subway in New York. Except that it is impeccably clean, safe and always on time!
No eating or drinking is allowed (past a certain point) in the stations or on the trains. As a result, even though the MRT has been running since 1996 it is still in great condition.
Despite carrying around 1.4 million passengers a day, it never feels that busy. The exception is during rush hour, but even then if you head to the ends of the trains it’s not so bad.
There are English signs, maps and information at every station, and it is an absolute breeze to use the MRT to get around. A day pass is available but only really worthwhile if you plan to do a lot of travel by MRT. If you are staying for more than a few days, buy an Easycard for $500NT ($400NT of credit) and it will save you a lot of hassle.