After my last post, I did try wireless / SmartDevice, just to be thorough.
In some ways it was better:
- Surprising fast for transfers (small ones, I didn't stress test).
- Stays connected in the background on the reader--I could keep reading while transferring books, except for notification pop ups.
- Connect / Disconnect is super quick compared to KOReaders USBMS.
The deal breaker for me is needing to share a wifi.
At home, it's great. But I don't want to expose my Calibre and book reader on a hotel/etc public wifi, and my phone's hotspot feature won't let them talk to each other.
I might look into it more, but my understanding is that Calibre's metadata.calibre and the SmartDevice version saved by the device are not generally compatible. Which prevents using both SmartDevice and USB on the same dir on the device.