Lenovo MiiX 320
We bought 20 or so Lenovo MIIX 320s for basic tasks, but our experience with them has not been as positive. We went for the model with 4GB of RAM, and the devices have been mostly reliable; but the feedback has been that the touch screen has not really been useful and the battery life not great; many complained that the keyboard was poor, particularly the placement of the right shift key. I think many of the criticisms are related to Windows 10 on a tablet and not this particular model.
For the next batch of cheap devices we just went for the Lenovo 11e laptop, which although looking quite old fashioned (like laptops were in the early 2000s!) seem very well built have gone down a lot better - I think they were designed for schools.