I know a few of you tried upgrading to Windows 10 some time ago, with mixed results and sheer frustration for some. But now, several months down the line, what are your thoughts on it now? Is it worth the hassle of upgrading, or better just to wait untill next time a pc/laptop needs replacing? Just wondering while the option of upgrading for free is still available...our two laptops are currently running Windows 8 & 8.1.