Traders of all levels will find Metatrader extremely comfortable and easy to use. A wide range of languages is available.
MetaTrader 4 is a pro when it comes to financial analysis. Not only you can use advanced charting possibilities, but you can also customize the colors and styles of the charts so that they are easier to read, remove functions, and upload presets.
The MetaTrader owes its popularity partly to its algorithmic trading. You can build custom technical indicators and develop your own EAs to automate the trading process.