Does anyone use the high-power graphics when on battery? My laptop is old, ca. 2009, but the HDMI port can only be driven by the high-power graphics chip. About the only time I use it is when I'm watching Netflix on a hotel TV, so it's plugged in. After all, if I wanted performance, I wouldn't be using a seven-year-old laptop.
But, if you're okay with the limitations, it's perfectly capable of doing anything the average person would need a computer for while on the road. You're not going to crunch a big set of numbers with it, but for the average task that requires a more capable device than a tablet, it's perfect. After I was able to flash a Galaxy SII into working condition while in Kenya, I decided that I was never leaving home without it again. Too many tasks require a real general-purpose computer.