A lot of sitcom cliches to be found here, whether it was Cleveland having to double for two people at the dinner table or Cleveland getting shipped to Yemen. Not a lot to say about this one, but it didn't do it for me.
The B-plot with Rallo and Junior as an Avatar-style battle robot was a lot more fun. I'm a sucker for these over-the-top silly fights on the playground.
I enjoyed it, but also wish it had more deduction and mystery. However, the ending does a pretty good job of paying that off. Moriarty is a great villain and foil for Sherlock. Their "mental duel" at the end was a really cool way to go.