Servant x Service certainly does remind me of Working!!, but not so much so that it doesn't have it's own flavor. Right off the bat, the OP was one of the more catchy, and wonderful visual explosions of color, that appeared this season. And for a slice-of-life, I'm having a lot of fun watching it.
It was kind of slow to start, but about halfway into the episode, the humor of the anime was really hitting with me. I don't always watch the slice-of-life genre -- simply because I was burned out by them -- but when I do, it's got to have a good amount of comedy, and Servant x Service really does deliver on that expect; especially with a great character like Hasebe Yutaka, who can be both serious and seriously funny in most scenes.
Servant x Service is fun to watch, and really gets going quickly. This seems almost like a no-brainer for me to continue watching it this season. I just hope it continues to stay lighthearted and fun, like Working!! because I'm all in if that is the case.