I feel like this is your pretty standard 4-star experience. There was nothing particularly bad about the whole experience of eating here, but nothing that stood out as "outstanding." I have gone to a Tonkatsu specialty place before in LA which was more expensive but also more tasty and a better experience.
I got the standard pork tonkatsu dinner. The portions were generous and the cut of the pork was quite thick. It came with two cutlets which was more than enough meat. On the critical side, their tonkatsu sauce is quite salty and it would be tough to counter that with the options on the table. The cutlets themselves were moist and well cooked, though the breading was a little plain in flavor.
The dinner portion came with rice and miso soup, which were ok but decent.
One thing that felt awkward to me is that the store was eerily quiet despite there being about a dozen people there when we got there. The place is quite small and cozy, but I for some reason felt like I was in a library the whole time.