Aside from the similar brand of comedy these dramas have, I see a common character in Baek Ma Tan of Gaus Electronics and Shibata Ken of Mr. Nietzsche in the Convenience Store. Both are both new employees who are ineptly hiding their wealthy background. These dramas are both hilarious so I recommend both if you liked the other drama.
Recommending Gaus Electronics to those who have watched Laughter in Waikiki 2. As mentioned in my other recommendation for the Season 1, both had this brand of humor in failure that as a viewer, we can't help laughing out loud how some situations gets silly and misunderstood. They both have romance too and I would say the couples in both dramas have really nice chemistry.