Just to motivate you, he shows an example where calling the C library to sort a large array is slower than the code using C++ templates that take advantage of parallelism.

An annoyance with the Arduino IDE is the need to shut down the serial port terminal when you want to upload new code. The Eclipse solution manages this while keeping the terminal window open.

Official Arduino Example Tutorials: The Arduino computer software is loaded with tons of examples for you to use in your own code or to run through as a learning experience.