@DANDAN_THE_DANDAN:
The short of it is that it's too early to say; I said "may" be good writing and in this case meant only that (my enthusiasm for getting even
possibly-good-writing in this genre may have been leaking a bit, sorry).
To wit, I had been semi-impressed by the atmosphere building and there seemed possibly to be some subtlety to the protagonist's character (Such as, he's acting mostly fine on the outside, but he appears to actually be quite disturbed at being ripped from his home
country world, and is possibly stuck between fishing for acceptance from the locals, clinging to his own culture, and his own desire to crawl into a corner and hide—all as the backdrop to some calm and peaceful interactions in running a coffee shop.) Or at least, that was my impression after the first two chapters, but it wasn't clear where it was going to go from there.
The third chapter seems to continue a bit along these theme, but it also seems possible that this is just part of the opening gambit still.
The obvious black mark against it so far is that all of his customers (that the story focuses on, anyway) seem to be pretty girls with kind of flirty dialogue. If everything is in service of that—if the protagonist just feels lonely in the beginning so as to better integrate into some sort of romance plot or some such and then it'll just be harem antics or something—then this could quickly go to pot.
Time will tell. Either way, so far it comes off as roughly standard-quality quintessential "seinen" social-interaction writing of some sort or another, which is for the time being a pretty stark rise in quality-of-writing over standard-quality isekai. Like, y'know, the author may even have heard somewhere of basic writing principles like, "show it don't say it," that sort of thing.