Less then 1 star, they deserve to be on the curb with the garbage. I bought a refurbished device from this company for my son to use for school and homework assignments, I also paid an additional 40 dollars for the windows program on it. It worked for a week or so and then have had ongoing problems, the device shut off on its own, he ended up missing classes because of this. Then I took it back to get fixed and paid an additional 100 dollars to get it fixed, didn't work. Ripped off $400.