I’ve used a Lenovo IdeaPad 120s temporarily because of a slight emergency and even did some coding on it. To say the least, it’s been weeks of managing resources very carefully and learning why performance is still an important factor in computing in general 🙂
If you’re considering buying it, make sure to be aware that this is an incredibly low end machine and that you exclusively want to use it as a distraction free environment (it doesn’t run many applications at once) and that you’ll probably only use it to write your novel. Using vim. Also you want a machine you can probably charge using a solar panel on your van and that lasts 5+ hours without flinching (8h advertised, depends what you do).