GOM Player is more than just a media player wrapped up in a slick user interface.
The player is not as lightweight as MPC-HC, another popular player.
Even the developer suggests 2 GB of RAM to use GOM Player.

GOM Player shows subtitle by default.
Once the video is played, the subtitle appears.
External subtitle is also displayed automatically as long as you put it inside the same folder as the video.

There is no need to worry about subtitle format because GOM Player supports the common ones.
For a video that doesnt come with a subtitle, have a go at use the Subtitle Finder.
Control Panel
A mini window appears once you hit the F7 button on your keyboard.
It is basically a shortcut panel to adjust some aspects of video, audio, subtitle, and playback.
It is also where you might dive into the screen capture and advanced screen capture.
GOM Player Free Download for Windows
The biggest selling point of GOM Player is its user interface.
Its dark, modern, and beautiful.
The arrangements of buttons is neat, especially the Preferences button at the top.
There is no other button in the section which makes it much easier to spot.