When I have had peer reviews within organizations (my current one does not do this), I usually convince other team members to let me write my own to save them the time or ask them to help me craft my review of them (and they usually reciprocate). Most of the time they let me write both and just approve their own.
I end up spending my time crafting my own narrative instead of working as well as giving them a convincing one in exchange.
Like what? Also, what is your actual job?