In the lowest, 3-star review for "First Class," IMDb user kyrenaika also pointed out the episode's perhaps ironic indictment of fluff material. "Sad to see that such a great program has devolved into an empty husk of its former self," they wrote.
User jameswyattranks was not quite as negative, but titled their 6-star review "A Little Disappointing." They found its content similar to Season 1, Episode 9 of the original "Frasier," which is titled "Selling Out," and similarly revolves around Frasier Crane struggling with the prospect of compromising his values.
Meanwhile, coflaky also compared the episode to the original run of "Frasier," but floated this comparison as a good thing, awarding it a perfect score. In another positive review, josephpdiianni argued that it was the best of the show's opening trio of episodes. "Every episode has gotten better and better! The cast has really seemed to hit their comedic stride by this point," they wrote.
While opinions may not be entirely negative, a sizable enough contingent of the IMDb fanbase thought poorly of the episode nevertheless. This prevailing sentiment earned "First Class" its spot as the worst-reviewed episode of the "Frasier" reboot as of Season 1's conclusion.