Due to the game being rough around the edges, I have a feeling that this game is actually one Kairosoft made early on, as in, it may have been one of the first ones they made back when they made games for flip-phones in Japan. It's enjoyable, but definitely not one of their best. I'd only recommend it to huge Kairosoft fans.
The music seems really out of place (more akin to what you'd hear in a low budget JRPG than a Simulation game); it's too hyper/active to match the game's atmosphere. The animations are all a bit rough and awkward too. There also seems to be some awkward laggy loading screens here and there, but only for a second or two.
With that being said, the game still is overall enjoyable if you are a big Kairosoft fan. Making all the various ramens and finding the best combos has all the same charm as it does in Game Dev story, Magazine Mougal, etc. There's the same Kairosoft charm present overall as well, and all the little knacks of leveling up your staff and your own skills does make it a game that you can sink a lot of time into.