No doubt the simplest and most flexible no-soldering way to start hacking with Arduino.
Coming from an "old-school" hacking ethic, we're used to hand-soldering parts and wires together to make our projects. But after using the Grove system for a while, it's proving itself to be an attractive alternative for quick prototyping and experimentation, without needing to reach for the soldering iron.
This product is the Starter Kit for Arduino, where a base-shield and an assortment of the essential modules have been put together in a tidy package. It's a bargain in time-savings, wiring-complexity, and simple WOW factor. You'll have your circuit wired up correctly, quickly. There is a huge peace-of-mind knowing that you don't have to worry about a wiring mistake while you are debugging your code. It's a fabulous system for working with Arduino-compatible microcontrollers.