I cannot believe they brought the maid from Superman's fortress of solitude back! Her dialogue was funny as a whole, and shockingly not too farfetched from how real maids genuinely act. This felt more like a storyline from a live action sitcom than something Family Guy does, but hey, it was funny, it worked, so no harm no foul.
Brian and Stewie's scenes were good as well, but that's no surprise as the two of them are the few consistently good characters nowadays.
To argue that this episode was well-written was nonsensical, but did it serve its purpose of making you laugh? Absolutely.