The performance is very good and the CPU is fast. For Office & Internet, the battery lasts about 8 hours. However, a development environment or the Adobe Suite reduces the time to about 4 hours. With the Windows performance settings, you can save the battery at the expense of performance. When the CPU is fully loaded, the fan is really loud and annoying. But that has only rarely been the case with me. All in all, I think it's a great device. I find the pen with OneNote particularly powerful. It works great.
