A hesitantly positive review from Ars Technica’s Peter Bright:
Windows 8 felt unfinished, but it was an unfinished thought. The actual released operating system was stable and reliable and didn’t have any glaring errors in it, but the thoughts behind it, the thoughts about how its various facets should work together, were incomplete.
Windows 10 feels unfinished, but in a different way. The concept of the operating system is a great deal better than its predecessor. It’s better in fact than all of its predecessors. It can ably span a range of form factors and designs, and it can be comfortable and effective on all of them. For all my gripes, it’s the right idea, and it’s implemented in more or less the right way. But I think it’s also buggier than Windows 8.1, 8, 7, or Vista were on their respective launch days.
Microsoft’s going through the same transition period Apple started a few years ago, and it is manifesting itself in similar ways: some icons that look a little rough, a healthy dose of bugs, yet generally positive reviews. Good stuff.
Update: Icon link swapped.