Mesh node VS bridged repeater

Hi all.
I have the need of a AP physically separated from the main network. It can't be wired, so it must connect to the main router by wifi. Two possibilities: a mesh node or a bridged repeater with relayd.

I have made tests and was able to successfully configure both possibilities (one at a time of course). My question is: what are the pros and cons of each method? (security, performance, network layer ...)

Actually I see a con for the bridge method : longer configuration, extra packages, IPv4 only. Once done it works well, so it's not such a big deal con.

Thank you.