I just talked to a StakeUnited staff and he explained me how the pool works and it is pretty impressive. However, for now, I would choose to stake using my own wallet 24 hours online everyday since I don't have that much coins yet. Staking pool will give you more stake based on the percentage of your coins in the pool. What will be more convenient is depend you. Both ways is good.

If you don't have a lot, I think it's better to go to the pool because you've very few chance to have a reward staking yourself.
Of course, it depends what is "that much".
You think it is? Hmm. I hope someone make an article on how was his staking pool experience with just only small amount of coins. Maybe 300 or less.