I'll be the one to rain on your parade. I was also excited to get an Android e-ink device and bought a Boox and now wish I hadn't. The biggest problem as far as Android goes is that all of the apps, except for a few ebook apps, are written for a color screen. When those colors are converted to grayscale for the e-ink screen they typically come out poorly. Here's a photo of my Boox with the play store app open.
