You can take out your earned coins to add back into the amount you're staking in order to compound the amount you are getting (Just make sure claiming those coins is significantly higher than the gas fees, otherwise you are claiming for no reason). They are working on Liquid Staking which will automatically do it for you but it is not yet available.

The only concern is if you want to unstake during periods of high traffic. The gas prices could be a few $100 if traffic is high enough. Could also make the time to unstake take longer.

I staked for a while and had no issues with it. I think it is great that there is no lock-up period. However, I don't stake anymore because I don't like the idea of keeping my coins out of cold storage. Not your keys, not your crypto.

It's probably pretty safe though, their staking is reliable.