I've only watched the first one. It was fine. The old age make-up seems a bit inconsistent. Aleida looks exactly the same as she did when she was recast back in season 2 but Margo and Ed look like walking corpses. Would you want a walking corpse on Mars, probably not! If the Russians and Americans are friends now and do missions together, why do they even need Margo (I guess this will come up later)?