The always sunny dude not knowing how to read was the funniest part of the episode to me
I only seen a handful of episodes of Sunny which was years ago and only remember a handful of characters. The short dude from Sunny scenes with Mr Johnson was funny too
Other than what I mentioned the episode was just OK. Its hard to pull off a crossover between a network TV comedy and cable comedy. Maybe I'm misremembering but I remember Quinta talking in a interview about writing for a Network TV comedy and how all the jokes have to be family friendly. Cable comedy you can literally say anything you want even in the cancel culture era. Family Guy is the only network TV comedy I've seen that has edgy humor.