I work for a developer. We are a LAMP shop. I am no programmer. I help build out our KB and help customer implement our cloud based Print MIS system that we bill customer monthly. Just wanted to share that my opinion comes with absolutely no claim of expertise. I used to love the stability of XP. When Vista came out, I wanted to murder any and all involved with building and deploying that. Later, I was quite happy to live with Windows 7. Life went on, then, my laptop became old and prone to problems that any 5 year old computer might have. So, when we purchased a new laptop for me, we installed windows 10 so "someone in the company could test issues". I am VERY happy with Windows 10, miserable that Skype got all messed up since Microsoft changed things, and no matter what version of windows, still hate Microsoft Dynamics but use it every day.
So, in summary - as a work-a-day user, it is a worthwhile OS in its own right.
Of course, I spend my entire day within a Google Chrome browser, so, truth be told - I suppose my opinion is worthless as I am hardly experiencing the OS in any meaningful way.
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Runs Adobe Photoshop version 6, even though folks warned me that it wouldn't