The phrase
"certain downsides" means that there are specific disadvantages or negative aspects associated with something.
Full definition
From my experience, there are
certain downsides to raising too much money too early at high valuations.
A Lot Can Be Achieved in a Short Time — Again, there are
certain downsides to being one of 30 or so in a class, particularly if your child is struggling to get their head round a topic.
However there are
certain downsides to operating a business as a Sole Proprietorship.
Although states increasingly require that a life settlement should be disclosed as an option in all cases where lapsing the policy is being considered, there can be
certain downsides to selling any life insurance policy.