I've been using a Chuwi hi10 pro with keyboard for the past few days and found little to complain. Build quality is impressive for a cheap China tablet. Keyboard feel is solid and really nice for typing occasionally. I've also owned the Chuwi hi8 and the Chuwi vi8. So far, no complains about its quality. Of course, you should not expect scratch resistant screens from them.
I noticed you are sourcing tablets to replace the mipad. Note that all these dual boot tablets run only Android 5.1 and are unlikely to be upgradeable. If you run mainly Android, just stick to the mipad which offers a better experience. However, if you are running Windows mainly, these new generation tablets are really good value. Just make sure you use the Edge browser where possible as it's less processor intensive than Chrome.