There is any drawback in using reflection to copy objects?

I'm using reflection to copy data between objects who implement the same interface, everything seems to work fine, but before deploying to production I wanted to ask: is there any reason why I should avoid doing this?

My previous implementation with hard-coded properties was not able to detect additions to the interface nor was able to avoid me or my team to mistakenly copy a property to another of the same type.

Also, I'm caching on a static dictionary the properties by type, does this have any advantage or i'm just doubling the CLR dictionary?