ETS trains operate by Keretapi Tanah Melayu Berhad, and boast a speed of an average 140 km/h (87 mph) on average, making them one of the fastest rail passenger services in Malaysia. Business and Standard are the two travel classes available onboard.
In all coaches and both classes, an infotainment LED television is provided as well as power sockets for charging electronic equipment, such as notebooks. Senior citizens and people with disabilities also have priority seating.
All KTMB coaches are fully air conditioned and run at a frequency of 15 minutes during peak hours and 20 minutes off-peak.
The standard travel class features comfortable seating arranged "2+2", plenty of luggage space, power outlets, and LCD TVs in each carriage. In addition to wider seats arranged "2+1", Business Class seats come with a video screen and a USB port and can easily be rotated to face any direction.