Well, at least they managed to do something special - they made an episode without a single funny joke. Nothing here works, I didn't even exhale slightly louder once, let alone laugh during this bore fest.
It is not surprising, considering that the core idea of this episode is completely moronic, and typically American notion that at 30 people are ancient and should be dead, or at least profoundly unhappy and ashamed because of their age.
Rachel is at her most shallow here, obsessed with age and designer maternity clothes. Just terrible.
To add to this, the audience (or is it the laugh track?) is extremely annoying - exploding into hysterics after each word. I guess they did what could be expected from people who have no talent to write something actually funny - try to make unfunny jokes seem funny by inserting extremely loud laughing, which, of course, has the exact opposite effect.