They are similar in the sense that they are both romantic comedies with a creepy twist but I have to say "Let's Eat" does it so much better! Another similarity between the two is the idol actors while in dating agency there's soo young in "let's eat" there is yoon doo joon and let me just say is acting completely blew. me. away. I didn't even know he was an idol! (I dont keep up with kpop) Every character was loveable and the love line was much nicer in my opinion because it's not a stereotypical love triangle :)
There is only one issue with this drama which you may realize simply with reading the title. They eat allll the time it WILL make you hungry so eat before hand!