I loved the little exchange between Michael and Saru "It's good to see you, Saru", "And you, my friend". Awesome to see Saru has come around in his opinion on Michael. And he was also kinda badass whilst taking charge of the situation in the Captain's seat. Great performance by Doug Jones.
So Mirror Landry is pretty much the same character as 'our' Landry. I thought the twist was gonna be that Lorca took Landry with him from the Mirrorverse. But no.