....is not really a question, at least for me.
I don't do review sessions.
I am thorough enough the *first* time I go over material, and I continuously review throughout lecture. I even take the first few minutes of the lecture period to review the material from the previous lecture.
So yeah. I don't do review sessions.
Many of my colleagues do, however, and several of them are quite vocal about my refusal to hold multi-hour review sessions the night before an exam.
What do I tell them?* That if they did it right the first time, they wouldn't need to give a review session. If you make it your mission to always help your students see the big picture and make connections between topics, then you don't need a review session to tie it all together.
*Obviously I don't say any of this out loud. But I do say it quite loudly in my head, particularly when they imply that *I* am the crappy professor for not spending my evenings reviewing for my students.