Once you have your ADA in a Ada compatible wallet staking is very simple, and it never leaves your control. You are free to move or withdraw your ADA at anytime. It takes approximately 20 days, or 4 EPOCHS for you to begin earning rewards. ** Expect this time frame to be longer if you are staking to a growing pool** If you withdraw rewards during the middle of an EPOCH you do not earn your rewards for that EPOCH.
My eight year old explained staking this way. " its like if I take my piggy bank, and put it on a shelf at school. Each week I would get more coins in my piggy bank, but I can move my piggy bank to another shelf, take it home, or take some coins out without asking anyone's permission."
Cardanosimple's own Stake pool information:
Pool Fees: 345 Minimum Fixed Fee Per Epoch And 4.00% Variable Fee
Performance And Metrics: You can follow our performance here.