Conclusion: The compromise you have to make with the Kobo Vox is clear: it is good value for money and you get a tablet that has been reasonably well built and offers a wide variety of features. But you get neither the best tablet experience nor the best reading device. As a tablet it lacks the Google certification and version of Android that would give you the best experience.
Pros: Cheap, Kobo's modifications make itservices easy to get into
Cons: It's neither the best solution for reading, nor the best for a tablet, battery life is poor, lacks Google certification