First, it is pool based. Meaning it is a group activity with multiple contributors for each staking contract.
Second, it is flexible. Meaning you have the option to withdraw early, stake until full maturity, or withdraw somewhere in between. But be warned: leaving early comes at a cost.
Finally, it is strategic. Meaning if you stake until full maturity, and others in your pool withdraw early, you will receive a portion of their rewards.
There will be 3 staking pools: Gold (shortest), Platinum (medium) and Diamond (longest). The terms of each staking pool (rewards, lengths, minimum contribution, etc.) are outlined in the full staking guide.