Pretty good. Can't really complain and I have upgraded both my old laptop (HP, ~5 years old) and new one (Dell, ~2 months). Both have been running smoothly. Mai

Pretty good. Can't really complain and I have upgraded both my old laptop (HP, ~5 years old) and new one (Dell, ~2 months). Both have been running smoothly. Main complaint is the new touch features on the mouse since they remind me of the Mac version and was never a fan of that but you can disable those. Other than that it was smooth sailing for the most part. Biggest issue I have heard is a small learning curve using Cortana. It's useful but disable her unless you have a surface or a computer built for Windows 10. If you run a Google-based system you should be okay without her. Overall, not bad. It runs pretty fast and before I was using a Gen 2 AMD quad core. It has a slight learning curve to the new features but otherwise no issues. I've used it with the HDMI port, VGA output to a dual screen, LAN, etc and so far have not had any issues on both computers.