It is generally "fine" but as a life long mac user from the 68k days, what it isn't is up to the standards Apple used to hold themselves to. macOS has over the last handful of years especially become something of a "death by a thousand paper cuts" experience. And I think the problem Apple is facing is Tahoe is such a fundamental UI change (and no one likes those, just go back and read up on reactions to the original OS X UI) that people are paying more attention to the flaws. The noise and inconsistencies of the menu icons, the "last 20%" cases where the liquid glass UI is actually pretty broken (drop down a long list of possible wifi networks with a window with a white background behind the list), the places where the UI just seems to fail to update until some background thread finally gets around to it. The fact that these are nits, but that the nits have really been adding up over the years is starting the wear thin. Apple has always been a corporation of cycles, and things have gone bad before and then gotten better. But years and years ago, the degree of attention to detail that Apple (usually) put into their software and products was the sort of thing you could point to and demonstrate that for whatever other flaws the system might have, the attention to detail really helped make the whole experience just better. These days, while they do sometimes still get it right, it does feel like there's a lot of software design decisions made by "warm bodies" and not, as the article puts it, people who "bleed six colors". Tahoe is the first time in decades of using a mac that I've actually wanted Apple to take a step back and seriously just spend time fixing the bugs. And I daily drove OS X beta, so my tolerance for buggy software in the face of incredible potential is really high.