That's fair. Using moon reader makes the library and store tabs useless. I have the store 'disabled' but the tab remains. Moon reader doesn't like it when I open books via the library tab (creates a duplicate) so I stopped using it. Personally I rarely need to exit the moon reader app, so the base UI really doesn't impact me much.

Haven't noticed moon reader hogging the battery. I keep Wi-Fi and Bluetooth off and use a decent amount of backlight and still get a couple of weeks out of it. Which is so much better than the 2-4 days my oasis got.

Part of the reason I love mine is that it supports TTS so I can create my own audiobooks. Currently using Google wavenet to read books to me. This is nice for car rides especially cause I read a lot of books that will never get audio book versions (translated Chinese cultural cultivation fantasy)